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1272682223904 = 253713145682489
BaseRepresentation
bin10010100001010001110…
…001011001100100100000
311111200000102010122100010
4102201101301121210200
5131322423122131104
62412355004524520
7160643152261320
oct22412161314440
94450012118303
101272682223904
11450817a33733
121867a2850740
13930236339a0
1445853467280
152318aa1e489
hex12851c59920

1272682223904 has 96 divisors (see below), whose sum is σ = 4111742597760. Its totient is φ = 335652452352.

The previous prime is 1272682223873. The next prime is 1272682223929. The reversal of 1272682223904 is 4093222862721.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72832509 + ... + 72849980.

It is an arithmetic number, because the mean of its divisors is an integer number (42830652060).

Almost surely, 21272682223904 is an apocalyptic number.

1272682223904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1272682223904 is an abundant number, since it is smaller than the sum of its proper divisors (2839060373856).

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

1272682223904 is a wasteful number, since it uses less digits than its factorization.

1272682223904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145682522 (or 145682514 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 1272682223904 in words is "one trillion, two hundred seventy-two billion, six hundred eighty-two million, two hundred twenty-three thousand, nine hundred four".

Divisors: 1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 32 39 42 48 52 56 78 84 91 96 104 112 156 168 182 208 224 273 312 336 364 416 546 624 672 728 1092 1248 1456 2184 2912 4368 8736 145682489 291364978 437047467 582729956 874094934 1019777423 1165459912 1748189868 1893872357 2039554846 2330919824 3059332269 3496379736 3787744714 4079109692 4661839648 5681617071 6118664538 6992759472 7575489428 8158219384 11363234142 12237329076 13257106499 13985518944 15150978856 16316438768 22726468284 24474658152 26514212998 30301957712 32632877536 39771319497 45452936568 48949316304 53028425996 60603915424 79542638994 90905873136 97898632608 106056851992 159085277988 181811746272 212113703984 318170555976 424227407968 636341111952 1272682223904