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25213872 = 2433714197
BaseRepresentation
bin110000000101…
…1101110110000
31202102222221010
41200023232300
522423320442
62300230520
7424212555
oct140135660
952388833
1025213872
1113261612
12853b440
1352ba668
1434c4a2c
152330b9c
hex180bbb0

25213872 has 40 divisors (see below), whose sum is σ = 66900976. Its totient is φ = 8176896.

The previous prime is 25213871. The next prime is 25213879. The reversal of 25213872 is 27831252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25213871) 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, 5323 + ... + 8874.

Almost surely, 225213872 is an apocalyptic number.

It is an amenable number.

25213872 is an abundant number, since it is smaller than the sum of its proper divisors (41687104).

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

25213872 is a wasteful number, since it uses less digits than its factorization.

25213872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14245 (or 14239 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 25213872 is about 5021.3416533831. The cubic root of 25213872 is about 293.2332280083.

The spelling of 25213872 in words is "twenty-five million, two hundred thirteen thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 37 48 74 111 148 222 296 444 592 888 1776 14197 28394 42591 56788 85182 113576 170364 227152 340728 525289 681456 1050578 1575867 2101156 3151734 4202312 6303468 8404624 12606936 25213872