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130066431 = 31111633389
BaseRepresentation
bin1111100000010…
…10011111111111
3100001202001121020
413300022133333
5231244111211
620523435223
73136355265
oct760123777
9301661536
10130066431
1167467920
1237685b13
1320c3cab1
14133ba435
15b643306
hex7c0a7ff

130066431 has 16 divisors (see below), whose sum is σ = 189406080. Its totient is φ = 78737120.

The previous prime is 130066411. The next prime is 130066451. The reversal of 130066431 is 134660031.

It is an interprime number because it is at equal distance from previous prime (130066411) and next prime (130066451).

It is not a de Polignac number, because 130066431 - 29 = 130065919 is a prime.

It is a super-2 number, since 2×1300664312 = 33834552946155522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130066411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36685 + ... + 40073.

It is an arithmetic number, because the mean of its divisors is an integer number (11837880).

Almost surely, 2130066431 is an apocalyptic number.

130066431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130066431 is a deficient number, since it is larger than the sum of its proper divisors (59339649).

130066431 is a wasteful number, since it uses less digits than its factorization.

130066431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4566.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 130066431 is about 11404.6670709846. The cubic root of 130066431 is about 506.6659759243.

The spelling of 130066431 in words is "one hundred thirty million, sixty-six thousand, four hundred thirty-one".

Divisors: 1 3 11 33 1163 3389 3489 10167 12793 37279 38379 111837 3941407 11824221 43355477 130066431