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5251258872 = 233272934151
BaseRepresentation
bin1001110001111111…
…11101100111111000
3111112222011120221100
410320333331213320
541223310240442
62225024411400
7244062651426
oct47077754770
914488146840
105251258872
112255220572
121026776b60
13658c22292
1437b5c8116
1520b03884c
hex138ffd9f8

5251258872 has 24 divisors (see below), whose sum is σ = 14222159640. Its totient is φ = 1750419600.

The previous prime is 5251258867. The next prime is 5251258907. The reversal of 5251258872 is 2788521525.

5251258872 is a `hidden beast` number, since 5 + 2 + 512 + 58 + 87 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36467004 + ... + 36467147.

It is an arithmetic number, because the mean of its divisors is an integer number (592589985).

Almost surely, 25251258872 is an apocalyptic number.

It is an amenable number.

5251258872 is an abundant number, since it is smaller than the sum of its proper divisors (8970900768).

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

5251258872 is a wasteful number, since it uses less digits than its factorization.

5251258872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72934163 (or 72934156 counting only the distinct ones).

The product of its digits is 448000, while the sum is 45.

The square root of 5251258872 is about 72465.5702523619. The cubic root of 5251258872 is about 1738.1522279323.

The spelling of 5251258872 in words is "five billion, two hundred fifty-one million, two hundred fifty-eight thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 72934151 145868302 218802453 291736604 437604906 583473208 656407359 875209812 1312814718 1750419624 2625629436 5251258872