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25083490280 = 235627087257
BaseRepresentation
bin10111010111000101…
…111010111111101000
32101202010000022221112
4113113011322333220
5402332333142110
615305002125452
71545410102162
oct272705727750
971663008845
1025083490280
11a701a81562
124a404b0888
132499919454
1412dd4bb932
159bc1b5405
hex5d717afe8

25083490280 has 16 divisors (see below), whose sum is σ = 56437853220. Its totient is φ = 10033396096.

The previous prime is 25083490279. The next prime is 25083490309. The reversal of 25083490280 is 8209438052.

It can be written as a sum of positive squares in 2 ways, for example, as 24051667396 + 1031822884 = 155086^2 + 32122^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313543589 + ... + 313543668.

Almost surely, 225083490280 is an apocalyptic number.

25083490280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25083490280 is an abundant number, since it is smaller than the sum of its proper divisors (31354362940).

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

25083490280 is a wasteful number, since it uses less digits than its factorization.

25083490280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627087268 (or 627087264 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 25083490280 in words is "twenty-five billion, eighty-three million, four hundred ninety thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 627087257 1254174514 2508349028 3135436285 5016698056 6270872570 12541745140 25083490280