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318745130 = 25116167709
BaseRepresentation
bin10010111111111…
…010101000101010
3211012202221010012
4102333322220222
51123044321010
651343451522
710620201044
oct2277725052
9735687105
10318745130
11153a17a30
128a8b6ba2
1351061cb2
1430492a94
151ceb3005
hex12ffaa2a

318745130 has 64 divisors (see below), whose sum is σ = 646565760. Its totient is φ = 112147200.

The previous prime is 318745129. The next prime is 318745157. The reversal of 318745130 is 31547813.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 449216 + ... + 449924.

It is an arithmetic number, because the mean of its divisors is an integer number (10102590).

Almost surely, 2318745130 is an apocalyptic number.

318745130 is an abundant number, since it is smaller than the sum of its proper divisors (327820630).

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

318745130 is a wasteful number, since it uses less digits than its factorization.

318745130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 318745130 is about 17853.4346835560. The cubic root of 318745130 is about 683.0951251142.

The spelling of 318745130 in words is "three hundred eighteen million, seven hundred forty-five thousand, one hundred thirty".

Divisors: 1 2 5 10 11 22 55 61 67 110 122 134 305 335 610 670 671 709 737 1342 1418 1474 3355 3545 3685 4087 6710 7090 7370 7799 8174 15598 20435 38995 40870 43249 44957 47503 77990 86498 89914 95006 216245 224785 237515 432490 449570 475030 475739 522533 951478 1045066 2378695 2612665 2897683 4757390 5225330 5795366 14488415 28976830 31874513 63749026 159372565 318745130