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130858731 = 32101359401
BaseRepresentation
bin1111100110010…
…11111011101011
3100010020022102200
413303023323223
5231444434411
620552431243
73146165223
oct763137353
9303208380
10130858731
1167959113
12379a8523
1321159603
1413545083
15b74ce56
hex7ccbeeb

130858731 has 24 divisors (see below), whose sum is σ = 191898720. Its totient is φ = 85920000.

The previous prime is 130858729. The next prime is 130858733. The reversal of 130858731 is 137858031.

It is an interprime number because it is at equal distance from previous prime (130858729) and next prime (130858733).

It is not a de Polignac number, because 130858731 - 21 = 130858729 is a prime.

It is a super-2 number, since 2×1308587312 = 34248014957860722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130858733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 326131 + ... + 326531.

It is an arithmetic number, because the mean of its divisors is an integer number (7995780).

Almost surely, 2130858731 is an apocalyptic number.

130858731 is a deficient number, since it is larger than the sum of its proper divisors (61039989).

130858731 is a wasteful number, since it uses less digits than its factorization.

130858731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 130858731 is about 11439.3501126594. The cubic root of 130858731 is about 507.6926797147.

The spelling of 130858731 in words is "one hundred thirty million, eight hundred fifty-eight thousand, seven hundred thirty-one".

Divisors: 1 3 9 101 303 359 401 909 1077 1203 3231 3609 36259 40501 108777 121503 143959 326331 364509 431877 1295631 14539859 43619577 130858731