Search a number
-
+
130390232 = 2372328397
BaseRepresentation
bin1111100010110…
…01100011011000
3100002100111202212
413301121203120
5231334441412
620534414252
73142204310
oct761314330
9302314685
10130390232
1167669125
1237801388
13210242ab
1413462440
15b6a9222
hex7c598d8

130390232 has 16 divisors (see below), whose sum is σ = 279407760. Its totient is φ = 55881504.

The previous prime is 130390219. The next prime is 130390279. The reversal of 130390232 is 232093031.

It is a super-2 number, since 2×1303902322 = 34003225202027648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130390198 and 130390207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1164143 + ... + 1164254.

It is an arithmetic number, because the mean of its divisors is an integer number (17462985).

Almost surely, 2130390232 is an apocalyptic number.

It is an amenable number.

130390232 is an abundant number, since it is smaller than the sum of its proper divisors (149017528).

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

130390232 is a wasteful number, since it uses less digits than its factorization.

130390232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328410 (or 2328406 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 130390232 is about 11418.8542332407. The cubic root of 130390232 is about 507.0860766235.

The spelling of 130390232 in words is "one hundred thirty million, three hundred ninety thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 56 2328397 4656794 9313588 16298779 18627176 32597558 65195116 130390232