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213355014240 = 25351393197767
BaseRepresentation
bin1100011010110011110…
…0110010100001100000
3202101201002002200221110
43012230330302201200
511443422340423430
6242003002223320
721262064461404
oct3065474624140
9671632080843
10213355014240
1182535386055
12354241b4b40
1317172111474
14a47da61104
15583ab507b0
hex31acf32860

213355014240 has 96 divisors (see below), whose sum is σ = 676903530240. Its totient is φ = 56485338624.

The previous prime is 213355014233. The next prime is 213355014247. The reversal of 213355014240 is 42410553312.

It is an interprime number because it is at equal distance from previous prime (213355014233) and next prime (213355014247).

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 (30).

It is a junction number, because it is equal to n+sod(n) for n = 213355014198 and 213355014207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213355014247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1532164 + ... + 1665603.

It is an arithmetic number, because the mean of its divisors is an integer number (7051078440).

Almost surely, 2213355014240 is an apocalyptic number.

213355014240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213355014240 is an abundant number, since it is smaller than the sum of its proper divisors (463548516000).

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

213355014240 is a wasteful number, since it uses less digits than its factorization.

213355014240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197924 (or 3197916 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 213355014240 its reverse (42410553312), we get a palindrome (255765567552).

The spelling of 213355014240 in words is "two hundred thirteen billion, three hundred fifty-five million, fourteen thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 139 160 240 278 417 480 556 695 834 1112 1390 1668 2085 2224 2780 3336 4170 4448 5560 6672 8340 11120 13344 16680 22240 33360 66720 3197767 6395534 9593301 12791068 15988835 19186602 25582136 31977670 38373204 47966505 51164272 63955340 76746408 95933010 102328544 127910680 153492816 191866020 255821360 306985632 383732040 444489613 511642720 767464080 888979226 1333468839 1534928160 1777958452 2222448065 2666937678 3555916904 4444896130 5333875356 6667344195 7111833808 8889792260 10667750712 13334688390 14223667616 17779584520 21335501424 26669376780 35559169040 42671002848 53338753560 71118338080 106677507120 213355014240