Search a number
-
+
25960381 = 30198599
BaseRepresentation
bin110001100000…
…1111110111101
31210211220221121
41203001332331
523121213011
62324230541
7433442146
oct143017675
953756847
1025960381
1113721467
12883b451
1354bc395
14363aacd
15242be71
hex18c1fbd

25960381 has 4 divisors (see below), whose sum is σ = 25972000. Its totient is φ = 25948764.

The previous prime is 25960379. The next prime is 25960387. The reversal of 25960381 is 18306952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25960381 - 21 = 25960379 is a prime.

It is a super-2 number, since 2×259603812 = 1347882763330322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25960387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281 + ... + 7318.

It is an arithmetic number, because the mean of its divisors is an integer number (6493000).

Almost surely, 225960381 is an apocalyptic number.

It is an amenable number.

25960381 is a deficient number, since it is larger than the sum of its proper divisors (11619).

25960381 is an equidigital number, since it uses as much as digits as its factorization.

25960381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11618.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 25960381 is about 5095.1330699011. The cubic root of 25960381 is about 296.0990545340.

The spelling of 25960381 in words is "twenty-five million, nine hundred sixty thousand, three hundred eighty-one".

Divisors: 1 3019 8599 25960381