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76212542688 = 253793880653
BaseRepresentation
bin100011011111010011…
…1110001110011100000
321021201101100022022020
41012332213301303200
52222040402331223
655002255141440
75335421632002
oct1067647616340
9237641308266
1076212542688
112a359aa2377
121292b514880
13725756c709
14398db50372
151eb0c2e1e3
hex11be9f1ce0

76212542688 has 24 divisors (see below), whose sum is σ = 200057924808. Its totient is φ = 25404180864.

The previous prime is 76212542671. The next prime is 76212542743. The reversal of 76212542688 is 88624521267.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 76212542688.

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, 396940231 + ... + 396940422.

It is an arithmetic number, because the mean of its divisors is an integer number (8335746867).

Almost surely, 276212542688 is an apocalyptic number.

It is an amenable number.

76212542688 is an abundant number, since it is smaller than the sum of its proper divisors (123845382120).

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

76212542688 is a wasteful number, since it uses less digits than its factorization.

76212542688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793880666 (or 793880658 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 51.

The spelling of 76212542688 in words is "seventy-six billion, two hundred twelve million, five hundred forty-two thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 793880653 1587761306 2381641959 3175522612 4763283918 6351045224 9526567836 12702090448 19053135672 25404180896 38106271344 76212542688