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25312411340 = 2252275575421
BaseRepresentation
bin10111100100101111…
…001011111011001100
32102100001202201121022
4113210233023323030
5403314434130330
615343420453312
71554156642416
oct274457137314
972301681538
1025312411340
11a80a218317
124aa50aa238
13250518b5b8
141321a6b9b6
159d2333ae5
hex5e4bcbecc

25312411340 has 24 divisors (see below), whose sum is σ = 53390241072. Its totient is φ = 10080359360.

The previous prime is 25312411303. The next prime is 25312411373. The reversal of 25312411340 is 4311421352.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2783171 + ... + 2792250.

It is an arithmetic number, because the mean of its divisors is an integer number (2224593378).

Almost surely, 225312411340 is an apocalyptic number.

25312411340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25312411340 is an abundant number, since it is smaller than the sum of its proper divisors (28077829732).

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

25312411340 is a wasteful number, since it uses less digits than its factorization.

25312411340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5575657 (or 5575655 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 25312411340 its reverse (4311421352), we get a palindrome (29623832692).

The spelling of 25312411340 in words is "twenty-five billion, three hundred twelve million, four hundred eleven thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 227 454 908 1135 2270 4540 5575421 11150842 22301684 27877105 55754210 111508420 1265620567 2531241134 5062482268 6328102835 12656205670 25312411340