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130231020132 = 22351051127481
BaseRepresentation
bin111100101001001011…
…1111010101001100100
3110110011000122021200000
41321102113322221210
54113203120121012
6135454410421300
712260150256303
oct1712227725144
9413130567600
10130231020132
115025a019a64
12212a6131830
13c385a00235
14643604443a
1535c3298ddc
hex1e525faa64

130231020132 has 72 divisors (see below), whose sum is σ = 341714991072. Its totient is φ = 43368696000.

The previous prime is 130231020107. The next prime is 130231020149. The reversal of 130231020132 is 231020132031.

130231020132 is a `hidden beast` number, since 1 + 302 + 310 + 20 + 1 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 957832 + ... + 1085312.

Almost surely, 2130231020132 is an apocalyptic number.

130231020132 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 130231020132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170857495536).

130231020132 is an abundant number, since it is smaller than the sum of its proper divisors (211483970940).

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

130231020132 is a wasteful number, since it uses less digits than its factorization.

130231020132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128551 (or 128537 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 130231020132 its reverse (231020132031), we get a palindrome (361251152163).

The spelling of 130231020132 in words is "one hundred thirty billion, two hundred thirty-one million, twenty thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 972 1051 2102 3153 4204 6306 9459 12612 18918 28377 37836 56754 85131 113508 127481 170262 254962 255393 340524 382443 509924 510786 764886 1021572 1147329 1529772 2294658 3441987 4589316 6883974 10325961 13767948 20651922 30977883 41303844 61955766 123911532 133982531 267965062 401947593 535930124 803895186 1205842779 1607790372 2411685558 3617528337 4823371116 7235056674 10852585011 14470113348 21705170022 32557755033 43410340044 65115510066 130231020132