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130788924 = 22377919709
BaseRepresentation
bin1111100101110…
…10111000111100
3100010002202200020
413302322320330
5231440221144
620551132140
73145454550
oct762727074
9303082606
10130788924
1167910722
1237974050
13211338c6
1413527860
15b737419
hex7cbae3c

130788924 has 48 divisors (see below), whose sum is σ = 353203200. Its totient is φ = 36893376.

The previous prime is 130788923. The next prime is 130788937. The reversal of 130788924 is 429887031.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130788923) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3219 + ... + 16490.

It is an arithmetic number, because the mean of its divisors is an integer number (7358400).

Almost surely, 2130788924 is an apocalyptic number.

130788924 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

130788924 is an abundant number, since it is smaller than the sum of its proper divisors (222414276).

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

130788924 is a wasteful number, since it uses less digits than its factorization.

130788924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19802 (or 19800 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 130788924 is about 11436.2985270585. The cubic root of 130788924 is about 507.6023869070.

The spelling of 130788924 in words is "one hundred thirty million, seven hundred eighty-eight thousand, nine hundred twenty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 79 84 158 237 316 474 553 948 1106 1659 2212 3318 6636 19709 39418 59127 78836 118254 137963 236508 275926 413889 551852 827778 1557011 1655556 3114022 4671033 6228044 9342066 10899077 18684132 21798154 32697231 43596308 65394462 130788924