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13131131010 = 235676532901
BaseRepresentation
bin11000011101010110…
…10010100010000010
31020220010112120101120
430032223102202002
5203343032143020
610010553413110
7643254525534
oct141653224202
936803476346
1013131131010
1156291aa098
12266570a196
1313135c520a
148c7d41854
1551cc05740
hex30ead2882

13131131010 has 32 divisors (see below), whose sum is σ = 31985088192. Its totient is φ = 3449371200.

The previous prime is 13131130981. The next prime is 13131131033. The reversal of 13131131010 is 1013113131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3264441 + ... + 3268460.

It is an arithmetic number, because the mean of its divisors is an integer number (999534006).

Almost surely, 213131131010 is an apocalyptic number.

13131131010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13131131010 is an abundant number, since it is smaller than the sum of its proper divisors (18853957182).

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

13131131010 is a wasteful number, since it uses less digits than its factorization.

13131131010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6532978.

The product of its (nonzero) digits is 27, while the sum is 15.

Adding to 13131131010 its reverse (1013113131), we get a palindrome (14144244141).

The spelling of 13131131010 in words is "thirteen billion, one hundred thirty-one million, one hundred thirty-one thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 67 134 201 335 402 670 1005 2010 6532901 13065802 19598703 32664505 39197406 65329010 97993515 195987030 437704367 875408734 1313113101 2188521835 2626226202 4377043670 6565565505 13131131010