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64942892954 = 241277868051
BaseRepresentation
bin111100011110111001…
…011110011110011010
320012121222111210011122
4330132321132132122
52031000340033304
645500115325242
74456226324222
oct743671363632
9205558453148
1064942892954
11255a662a765
12107052b0822
13617c812814
14320112b082
151a516789be
hexf1ee5e79a

64942892954 has 8 divisors (see below), whose sum is σ = 97437955968. Its totient is φ = 32463574300.

The previous prime is 64942892939. The next prime is 64942892957. The reversal of 64942892954 is 45929824946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×649428929542 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64942892957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3925772 + ... + 3942279.

It is an arithmetic number, because the mean of its divisors is an integer number (12179744496).

Almost surely, 264942892954 is an apocalyptic number.

64942892954 is a deficient number, since it is larger than the sum of its proper divisors (32495063014).

64942892954 is a wasteful number, since it uses less digits than its factorization.

64942892954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7872180.

The product of its digits is 44789760, while the sum is 62.

The spelling of 64942892954 in words is "sixty-four billion, nine hundred forty-two million, eight hundred ninety-two thousand, nine hundred fifty-four".

Divisors: 1 2 4127 8254 7868051 15736102 32471446477 64942892954