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316872125 = 5329611433
BaseRepresentation
bin10010111000110…
…001010110111101
3211002020202211122
4102320301112331
51122104402000
651235400325
710565240303
oct2270612675
9732222748
10316872125
11152958799
128a1530a5
13508575cb
1430126273
151cc43085
hex12e315bd

316872125 has 32 divisors (see below), whose sum is σ = 416089440. Its totient is φ = 240576000.

The previous prime is 316872121. The next prime is 316872133. The reversal of 316872125 is 521278613.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 253796761 + 63075364 = 15931^2 + 7942^2 .

It is not a de Polignac number, because 316872125 - 22 = 316872121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316872121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220409 + ... + 221841.

It is an arithmetic number, because the mean of its divisors is an integer number (13002795).

Almost surely, 2316872125 is an apocalyptic number.

It is an amenable number.

316872125 is a deficient number, since it is larger than the sum of its proper divisors (99217315).

316872125 is a wasteful number, since it uses less digits than its factorization.

316872125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538 (or 1528 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 316872125 is about 17800.9023647679. The cubic root of 316872125 is about 681.7544982271.

The spelling of 316872125 in words is "three hundred sixteen million, eight hundred seventy-two thousand, one hundred twenty-five".

Divisors: 1 5 25 29 61 125 145 305 725 1433 1525 1769 3625 7165 7625 8845 35825 41557 44225 87413 179125 207785 221125 437065 1038925 2185325 2534977 5194625 10926625 12674885 63374425 316872125