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67946464976 = 24131092996933
BaseRepresentation
bin111111010001111011…
…001100011011010000
320111101022021001101212
4333101323030123100
52103123243334401
651114132315252
74623530265035
oct772173143320
9214338231355
1067946464976
11268a800a895
1211203172b28
13653ab77b80
143407dc338c
151b7a1c5dbb
hexfd1ecc6d0

67946464976 has 40 divisors (see below), whose sum is σ = 143073629160. Its totient is φ = 31072190976.

The previous prime is 67946464933. The next prime is 67946464987.

67946464976 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 4945464976 + 63001000000 = 70324^2 + 251000^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1475795 + ... + 1521138.

It is an arithmetic number, because the mean of its divisors is an integer number (3576840729).

Almost surely, 267946464976 is an apocalyptic number.

It is an amenable number.

67946464976 is an abundant number, since it is smaller than the sum of its proper divisors (75127164184).

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

67946464976 is a wasteful number, since it uses less digits than its factorization.

67946464976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997063 (or 2997057 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 68.

The spelling of 67946464976 in words is "sixty-seven billion, nine hundred forty-six million, four hundred sixty-four thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 13 16 26 52 104 109 208 218 436 872 1417 1744 2834 5668 11336 22672 2996933 5993866 11987732 23975464 38960129 47950928 77920258 155840516 311681032 326665697 623362064 653331394 1306662788 2613325576 4246654061 5226651152 8493308122 16986616244 33973232488 67946464976