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25923423948 = 2232160285329
BaseRepresentation
bin11000001001001010…
…000000111011001100
32110220122111101022220
4120021022000323030
5411042344031243
615524204535340
71605256316322
oct301112007314
973818441286
1025923423948
11aaa3108114
125035851550
1325a1941916
14137cc7dd12
15a1acc9783
hex609280ecc

25923423948 has 12 divisors (see below), whose sum is σ = 60487989240. Its totient is φ = 8641141312.

The previous prime is 25923423899. The next prime is 25923423949. The reversal of 25923423948 is 84932432952.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 25923423948.

It is not an unprimeable number, because it can be changed into a prime (25923423949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1080142653 + ... + 1080142676.

It is an arithmetic number, because the mean of its divisors is an integer number (5040665770).

Almost surely, 225923423948 is an apocalyptic number.

It is an amenable number.

25923423948 is an abundant number, since it is smaller than the sum of its proper divisors (34564565292).

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

25923423948 is a wasteful number, since it uses less digits than its factorization.

25923423948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160285336 (or 2160285334 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 51.

The spelling of 25923423948 in words is "twenty-five billion, nine hundred twenty-three million, four hundred twenty-three thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 2160285329 4320570658 6480855987 8641141316 12961711974 25923423948