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1914393235456 = 21213216632
BaseRepresentation
bin11011110110111010101…
…110101001000000000000
320210000101100121121221001
4123312322232221000000
5222331134132013311
64023243214541344
7255211310004112
oct33667256510000
96700340547831
101914393235456
116789870895a9
1226b032507854
1310b6ac977100
146892b2293b2
1534be76a04c1
hex1bdbaba9000

1914393235456 has 117 divisors (see below), whose sum is σ = 4147952207049. Its totient is φ = 883034800128.

The previous prime is 1914393235453. The next prime is 1914393235487. The reversal of 1914393235456 is 6545323934191.

1914393235456 = 13 + 23 + ... + 16633.

It is a happy number.

The square root of 1914393235456 is 1383616.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 283194265600 + 1631198969856 = 532160^2 + 1277184^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1914393235397 and 1914393235406.

It is not an unprimeable number, because it can be changed into a prime (1914393235451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1151167681 + ... + 1151169343.

Almost surely, 21914393235456 is an apocalyptic number.

1914393235456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1914393235456 is the 1383616-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1914393235456

1914393235456 is an abundant number, since it is smaller than the sum of its proper divisors (2233558971593).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1914393235456 is an frugal number, since it uses more digits than its factorization.

1914393235456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376 (or 1678 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 55.

The spelling of 1914393235456 in words is "one trillion, nine hundred fourteen billion, three hundred ninety-three million, two hundred thirty-five thousand, four hundred fifty-six".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 169 208 256 338 416 512 676 832 1024 1352 1663 1664 2048 2704 3326 3328 4096 5408 6652 6656 10816 13304 13312 21619 21632 26608 26624 43238 43264 53216 53248 86476 86528 106432 172952 173056 212864 281047 345904 346112 425728 562094 691808 692224 851456 1124188 1383616 1702912 2248376 2765569 2767232 3405824 4496752 5531138 5534464 6811648 8993504 11062276 11068928 17987008 22124552 22137856 35952397 35974016 44249104 44275712 71904794 71948032 88498208 88551424 143809588 143896064 176996416 287619176 287792128 353992832 467381161 575238352 575584256 707985664 934762322 1150476704 1151168512 1415971328 1869524644 2300953408 2831942656 3739049288 4601906816 5663885312 7478098576 9203813632 11327770624 14956197152 18407627264 29912394304 36815254528 59824788608 73630509056 119649577216 147261018112 239299154432 478598308864 957196617728 1914393235456