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25983960 = 2335223971
BaseRepresentation
bin110001100011…
…1101111011000
31210220010021220
41203013233120
523122441320
62324532040
7433600662
oct143075730
953803256
1025983960
1113738152
128851020
1354ca032
143645532
152433e40
hex18c7bd8

25983960 has 64 divisors (see below), whose sum is σ = 78382080. Its totient is φ = 6890880.

The previous prime is 25983931. The next prime is 25983989. The reversal of 25983960 is 6938952.

It is an interprime number because it is at equal distance from previous prime (25983931) and next prime (25983989).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26275 + ... + 27245.

It is an arithmetic number, because the mean of its divisors is an integer number (1224720).

Almost surely, 225983960 is an apocalyptic number.

25983960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25983960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39191040).

25983960 is an abundant number, since it is smaller than the sum of its proper divisors (52398120).

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

25983960 is a wasteful number, since it uses less digits than its factorization.

25983960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208 (or 1204 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 25983960 is about 5097.4464195320. The cubic root of 25983960 is about 296.1886732356.

The spelling of 25983960 in words is "twenty-five million, nine hundred eighty-three thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 223 446 669 892 971 1115 1338 1784 1942 2230 2676 2913 3345 3884 4460 4855 5352 5826 6690 7768 8920 9710 11652 13380 14565 19420 23304 26760 29130 38840 58260 116520 216533 433066 649599 866132 1082665 1299198 1732264 2165330 2598396 3247995 4330660 5196792 6495990 8661320 12991980 25983960