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13031320210 = 251303132021
BaseRepresentation
bin11000010001011101…
…00010101010010010
31020122011201122201021
430020232202222102
5203142004221320
65553030230054
7640633252126
oct141056425222
936564648637
1013031320210
115587927827
1226381b532a
1312c8a1987c
148b899d586
1551408bdaa
hex308ba2a92

13031320210 has 8 divisors (see below), whose sum is σ = 23456376396. Its totient is φ = 5212528080.

The previous prime is 13031320193. The next prime is 13031320213. The reversal of 13031320210 is 1202313031.

It can be written as a sum of positive squares in 2 ways, for example, as 11585723769 + 1445596441 = 107637^2 + 38021^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13031320213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651566001 + ... + 651566020.

Almost surely, 213031320210 is an apocalyptic number.

13031320210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13031320210 is a deficient number, since it is larger than the sum of its proper divisors (10425056186).

13031320210 is a wasteful number, since it uses less digits than its factorization.

13031320210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303132028.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13031320210 its reverse (1202313031), we get a palindrome (14233633241).

The spelling of 13031320210 in words is "thirteen billion, thirty-one million, three hundred twenty thousand, two hundred ten".

Divisors: 1 2 5 10 1303132021 2606264042 6515660105 13031320210