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25312034120 = 2352101730109
BaseRepresentation
bin10111100100101101…
…101111110101001000
32102100001001120011012
4113210231233311020
5403314340042440
615343404423052
71554153511562
oct274455576510
972301046135
1025312034120
11a809a8a96a
124aa4b47a88
1325050889a9
1413219b0332
159d22abe65
hex5e4b6fd48

25312034120 has 32 divisors (see below), whose sum is σ = 56956678200. Its totient is φ = 10123995648.

The previous prime is 25312034113. The next prime is 25312034123. The reversal of 25312034120 is 2143021352.

It can be written as a sum of positive squares in 4 ways, for example, as 9406284196 + 15905749924 = 96986^2 + 126118^2 .

It is not an unprimeable number, because it can be changed into a prime (25312034123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825626 + ... + 855734.

Almost surely, 225312034120 is an apocalyptic number.

25312034120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25312034120 is an abundant number, since it is smaller than the sum of its proper divisors (31644644080).

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

25312034120 is a wasteful number, since it uses less digits than its factorization.

25312034120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51137 (or 51133 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 25312034120 its reverse (2143021352), we get a palindrome (27455055472).

The spelling of 25312034120 in words is "twenty-five billion, three hundred twelve million, thirty-four thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 21017 30109 42034 60218 84068 105085 120436 150545 168136 210170 240872 301090 420340 602180 840680 1204360 632800853 1265601706 2531203412 3164004265 5062406824 6328008530 12656017060 25312034120