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25142670907 = 409487126229
BaseRepresentation
bin10111011010100111…
…101011011000111011
32101220020101000111121
4113122213223120323
5402443010432112
615314514410111
71550026114354
oct273247533073
971806330447
1025142670907
11a732422872
124a58290937
1324a8c6a483
1413072c4d2b
159c24a5407
hex5da9eb63b

25142670907 has 8 divisors (see below), whose sum is σ = 25256098400. Its totient is φ = 25029497664.

The previous prime is 25142670859. The next prime is 25142670919. The reversal of 25142670907 is 70907624152.

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

It is a cyclic number.

It is not a de Polignac number, because 25142670907 - 27 = 25142670779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25142670977) 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, 136069 + ... + 262297.

It is an arithmetic number, because the mean of its divisors is an integer number (3157012300).

Almost surely, 225142670907 is an apocalyptic number.

25142670907 is a deficient number, since it is larger than the sum of its proper divisors (113427493).

25142670907 is a wasteful number, since it uses less digits than its factorization.

25142670907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127125.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 25142670907 in words is "twenty-five billion, one hundred forty-two million, six hundred seventy thousand, nine hundred seven".

Divisors: 1 409 487 126229 199183 51627661 61473523 25142670907