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25961379 = 343201251
BaseRepresentation
bin110001100001…
…0001110100011
31210211222022120
41203002032203
523121231004
62324235323
7433445103
oct143021643
953758276
1025961379
1113722194
12883bb43
1354bc982
14363b203
15242c3d9
hex18c23a3

25961379 has 8 divisors (see below), whose sum is σ = 35420352. Its totient is φ = 16905000.

The previous prime is 25961359. The next prime is 25961393. The reversal of 25961379 is 97316952.

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

It is not a de Polignac number, because 25961379 - 28 = 25961123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25961379.

It is not an unprimeable number, because it can be changed into a prime (25961359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100497 + ... + 100754.

It is an arithmetic number, because the mean of its divisors is an integer number (4427544).

Almost surely, 225961379 is an apocalyptic number.

25961379 is a deficient number, since it is larger than the sum of its proper divisors (9458973).

25961379 is a wasteful number, since it uses less digits than its factorization.

25961379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201297.

The product of its digits is 102060, while the sum is 42.

The square root of 25961379 is about 5095.2310055580. The cubic root of 25961379 is about 296.1028488166.

The spelling of 25961379 in words is "twenty-five million, nine hundred sixty-one thousand, three hundred seventy-nine".

Divisors: 1 3 43 129 201251 603753 8653793 25961379