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130232131002 = 23229428958169
BaseRepresentation
bin111100101001001110…
…0001001110110111010
3110110011002201201111100
41321102130021312322
54113203411143002
6135454450312230
712260162564061
oct1712234116672
9413132651440
10130232131002
115025a708636
12212a6588676
13c385ccba5c
1464362531d8
1535c341811c
hex1e52709dba

130232131002 has 48 divisors (see below), whose sum is σ = 291972681000. Its totient is φ = 41903296512.

The previous prime is 130232130997. The next prime is 130232131061. The reversal of 130232131002 is 200131232031.

130232131002 is a `hidden beast` number, since 1 + 30 + 2 + 321 + 310 + 0 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 124326054801 + 5906076201 = 352599^2 + 76851^2 .

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, 2209774 + ... + 2267942.

Almost surely, 2130232131002 is an apocalyptic number.

130232131002 is an abundant number, since it is smaller than the sum of its proper divisors (161740549998).

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

130232131002 is a wasteful number, since it uses less digits than its factorization.

130232131002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62495 (or 62492 counting only the distinct ones).

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

Adding to 130232131002 its reverse (200131232031), we get a palindrome (330363363033).

The spelling of 130232131002 in words is "one hundred thirty billion, two hundred thirty-two million, one hundred thirty-one thousand, two".

Divisors: 1 2 3 6 9 18 29 58 87 174 261 522 4289 8578 12867 25734 38601 58169 77202 116338 124381 174507 248762 349014 373143 523521 746286 1047042 1119429 1686901 2238858 3373802 5060703 10121406 15182109 30364218 249486841 498973682 748460523 1496921046 2245381569 4490763138 7235118389 14470236778 21705355167 43410710334 65116065501 130232131002