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2031132520 = 235431180891
BaseRepresentation
bin111100100010000…
…1001111101101000
312020112221020000101
41321010021331220
513124432220040
6533314115144
7101222225104
oct17104117550
95215836011
102031132520
11952580a1a
1248827bab4
13264a57981
14153a80904
15bd4b209a
hex79109f68

2031132520 has 32 divisors (see below), whose sum is σ = 4676332320. Its totient is φ = 793558080.

The previous prime is 2031132517. The next prime is 2031132619. The reversal of 2031132520 is 252311302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588726 + ... + 592165.

It is an arithmetic number, because the mean of its divisors is an integer number (146135385).

Almost surely, 22031132520 is an apocalyptic number.

2031132520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031132520 is an abundant number, since it is smaller than the sum of its proper divisors (2645199800).

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

2031132520 is a wasteful number, since it uses less digits than its factorization.

2031132520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180945 (or 1180941 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2031132520 is about 45068.0876008734. The cubic root of 2031132520 is about 1266.4248387216.

Adding to 2031132520 its reverse (252311302), we get a palindrome (2283443822).

The spelling of 2031132520 in words is "two billion, thirty-one million, one hundred thirty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 215 344 430 860 1720 1180891 2361782 4723564 5904455 9447128 11808910 23617820 47235640 50778313 101556626 203113252 253891565 406226504 507783130 1015566260 2031132520