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130020344 = 2319855397
BaseRepresentation
bin1111011111111…
…11001111111000
3100001122201101022
413233333033320
5231241122334
620522442012
73136104026
oct757771770
9301581338
10130020344
1167436233
1237663308
1320c24b1c
14133a7716
15b63482e
hex7bff3f8

130020344 has 16 divisors (see below), whose sum is σ = 256619400. Its totient is φ = 61588512.

The previous prime is 130020337. The next prime is 130020353. The reversal of 130020344 is 443020031.

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, 427547 + ... + 427850.

Almost surely, 2130020344 is an apocalyptic number.

It is an amenable number.

130020344 is a deficient number, since it is larger than the sum of its proper divisors (126599056).

130020344 is a wasteful number, since it uses less digits than its factorization.

130020344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855422 (or 855418 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 130020344 is about 11402.6463595080. The cubic root of 130020344 is about 506.6061258073.

Adding to 130020344 its reverse (443020031), we get a palindrome (573040375).

The spelling of 130020344 in words is "one hundred thirty million, twenty thousand, three hundred forty-four".

Divisors: 1 2 4 8 19 38 76 152 855397 1710794 3421588 6843176 16252543 32505086 65010172 130020344