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130233012 = 223713239499
BaseRepresentation
bin1111100001100…
…11001010110100
3100002001112002220
413300303022310
5231314424022
620531202340
73140651040
oct760631264
9302045086
10130233012
1167570a98
12377463b0
1320c9a870
1413421020
15b67785c
hex7c332b4

130233012 has 96 divisors (see below), whose sum is σ = 376320000. Its totient is φ = 34134912.

The previous prime is 130232989. The next prime is 130233013. The reversal of 130233012 is 210332031.

It is a junction number, because it is equal to n+sod(n) for n = 130232982 and 130233000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130233013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260739 + ... + 261237.

It is an arithmetic number, because the mean of its divisors is an integer number (3920000).

Almost surely, 2130233012 is an apocalyptic number.

130233012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130233012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188160000).

130233012 is an abundant number, since it is smaller than the sum of its proper divisors (246086988).

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

130233012 is a wasteful number, since it uses less digits than its factorization.

130233012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765 (or 763 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 130233012 is about 11411.9679284513. The cubic root of 130233012 is about 506.8821857439.

Adding to 130233012 its reverse (210332031), we get a palindrome (340565043).

The spelling of 130233012 in words is "one hundred thirty million, two hundred thirty-three thousand, twelve".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 239 273 364 478 499 546 717 956 998 1092 1434 1497 1673 1996 2868 2994 3107 3346 3493 5019 5988 6214 6487 6692 6986 9321 10038 10479 12428 12974 13972 18642 19461 20076 20958 21749 25948 37284 38922 41916 43498 45409 65247 77844 86996 90818 119261 130494 136227 181636 238522 260988 272454 357783 477044 544908 715566 834827 1431132 1550393 1669654 2504481 3100786 3339308 4651179 5008962 6201572 9302358 10017924 10852751 18604716 21705502 32558253 43411004 65116506 130233012