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76981141216 = 257343665809
BaseRepresentation
bin100011110110001101…
…1101111111011100000
321100200221121011021101
41013230123233323200
52230124133004331
655210433004144
75363443622020
oct1075433577340
9240627534241
1076981141216
112a713935871
1212b049b3654
13734a879745
143a23c63a80
152008452061
hex11ec6efee0

76981141216 has 24 divisors (see below), whose sum is σ = 173207568240. Its totient is φ = 32991917568.

The previous prime is 76981141163. The next prime is 76981141229. The reversal of 76981141216 is 61214118967.

It is a super-2 number, since 2×769811412162 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171832681 + ... + 171833128.

It is an arithmetic number, because the mean of its divisors is an integer number (7216982010).

Almost surely, 276981141216 is an apocalyptic number.

It is an amenable number.

76981141216 is an abundant number, since it is smaller than the sum of its proper divisors (96226427024).

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

76981141216 is a wasteful number, since it uses less digits than its factorization.

76981141216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343665826 (or 343665818 counting only the distinct ones).

The product of its digits is 145152, while the sum is 46.

The spelling of 76981141216 in words is "seventy-six billion, nine hundred eighty-one million, one hundred forty-one thousand, two hundred sixteen".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 343665809 687331618 1374663236 2405660663 2749326472 4811321326 5498652944 9622642652 10997305888 19245285304 38490570608 76981141216