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1310231113 = 4359516449
BaseRepresentation
bin100111000011000…
…1000101001001001
310101022102122012021
41032012020221021
510140404343423
6334002444441
744316531532
oct11606105111
93338378167
101310231113
11612656034
12306963721
1317b5aaaa9
14c6025689
157a06195d
hex4e188a49

1310231113 has 8 divisors (see below), whose sum is σ = 1363428000. Its totient is φ = 1258067328.

The previous prime is 1310231099. The next prime is 1310231141. The reversal of 1310231113 is 3111320131.

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 1310231113 - 25 = 1310231081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310238113) 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, 255688 + ... + 260761.

It is an arithmetic number, because the mean of its divisors is an integer number (170428500).

Almost surely, 21310231113 is an apocalyptic number.

It is an amenable number.

1310231113 is a deficient number, since it is larger than the sum of its proper divisors (53196887).

1310231113 is an equidigital number, since it uses as much as digits as its factorization.

1310231113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516551.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1310231113 is about 36197.1147054568. The cubic root of 1310231113 is about 1094.2485236839.

Adding to 1310231113 its reverse (3111320131), we get a palindrome (4421551244).

The spelling of 1310231113 in words is "one billion, three hundred ten million, two hundred thirty-one thousand, one hundred thirteen".

Divisors: 1 43 59 2537 516449 22207307 30470491 1310231113