Search a number
-
+
25972700 = 22521319979
BaseRepresentation
bin110001100010…
…0111111011100
31210212112211212
41203010333130
523122111300
62324403552
7433523105
oct143047734
953775755
1025972700
111372a746
1288465b8
1354c4b80
1436413ac
152430935
hex18c4fdc

25972700 has 36 divisors (see below), whose sum is σ = 60699240. Its totient is φ = 9589440.

The previous prime is 25972697. The next prime is 25972729. The reversal of 25972700 is 727952.

It is a super-2 number, since 2×259727002 = 1349162290580000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8690 + ... + 11289.

It is an arithmetic number, because the mean of its divisors is an integer number (1686090).

Almost surely, 225972700 is an apocalyptic number.

25972700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25972700 is an abundant number, since it is smaller than the sum of its proper divisors (34726540).

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

25972700 is a wasteful number, since it uses less digits than its factorization.

25972700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20006 (or 19999 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 25972700 is about 5096.3418252704. The cubic root of 25972700 is about 296.1458831666.

The spelling of 25972700 in words is "twenty-five million, nine hundred seventy-two thousand, seven hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 260 325 650 1300 19979 39958 79916 99895 199790 259727 399580 499475 519454 998950 1038908 1298635 1997900 2597270 5194540 6493175 12986350 25972700