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79952505464 = 23132473310867
BaseRepresentation
bin100101001110110001…
…0100110101001111000
321122101000202002202002
41022131202212221320
52302220320133324
6100421335400132
75530204040366
oct1123542465170
9248330662662
1079952505464
11309a91177a7
12135b3b23048
137702345c40
143c26734636
15212e23b3ae
hex129d8a6a78

79952505464 has 32 divisors (see below), whose sum is σ = 161508360720. Its totient is φ = 36886116096.

The previous prime is 79952505461. The next prime is 79952505487. The reversal of 79952505464 is 46450525997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79952505461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101759 + ... + 412625.

Almost surely, 279952505464 is an apocalyptic number.

It is an amenable number.

79952505464 is an abundant number, since it is smaller than the sum of its proper divisors (81555855256).

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

79952505464 is a wasteful number, since it uses less digits than its factorization.

79952505464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313359 (or 313355 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 56.

The spelling of 79952505464 in words is "seventy-nine billion, nine hundred fifty-two million, five hundred five thousand, four hundred sixty-four".

Divisors: 1 2 4 8 13 26 52 104 2473 4946 9892 19784 32149 64298 128596 257192 310867 621734 1243468 2486936 4041271 8082542 16165084 32330168 768774091 1537548182 3075096364 6150192728 9994063183 19988126366 39976252732 79952505464