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1313000131 = 4786332371
BaseRepresentation
bin100111001000010…
…1100101011000011
310101111122022120111
41032100230223003
510142112001011
6334142052151
744352213502
oct11620545303
93344568514
101313000131
11614177483
1230787a057
1317c03a271
14c6546839
157a40c121
hex4e42cac3

1313000131 has 8 divisors (see below), whose sum is σ = 1342531584. Its totient is φ = 1283535240.

The previous prime is 1313000123. The next prime is 1313000153. The reversal of 1313000131 is 1310003131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1313000131 - 23 = 1313000123 is a prime.

It is a super-2 number, since 2×13130001312 = 3447938688012034322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313006131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24376 + ... + 56746.

It is an arithmetic number, because the mean of its divisors is an integer number (167816448).

Almost surely, 21313000131 is an apocalyptic number.

1313000131 is a deficient number, since it is larger than the sum of its proper divisors (29531453).

1313000131 is an equidigital number, since it uses as much as digits as its factorization.

1313000131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33281.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 1313000131 is about 36235.3436716143. The cubic root of 1313000131 is about 1095.0188360917.

Adding to 1313000131 its reverse (1310003131), we get a palindrome (2623003262).

It can be divided in two parts, 1313000 and 131, that added together give a palindrome (1313131).

The spelling of 1313000131 in words is "one billion, three hundred thirteen million, one hundred thirty-one", and thus it is an aban number.

Divisors: 1 47 863 32371 40561 1521437 27936173 1313000131