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1312357413 = 31732528627
BaseRepresentation
bin100111000111000…
…1111110000100101
310101110102122221010
41032032033300211
510141430414123
6334120212433
744343565623
oct11616176045
93343378833
101312357413
11613878604
1230760a119
1317bb73863
14c641a513
157a331993
hex4e38fc25

1312357413 has 8 divisors (see below), whose sum is σ = 1759925088. Its totient is φ = 869847344.

The previous prime is 1312357411. The next prime is 1312357447. The reversal of 1312357413 is 3147532131.

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 1312357413 - 21 = 1312357411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312357411) 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, 1263795 + ... + 1264832.

It is an arithmetic number, because the mean of its divisors is an integer number (219990636).

Almost surely, 21312357413 is an apocalyptic number.

It is an amenable number.

1312357413 is a deficient number, since it is larger than the sum of its proper divisors (447567675).

1312357413 is a wasteful number, since it uses less digits than its factorization.

1312357413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528803.

The product of its digits is 7560, while the sum is 30.

The square root of 1312357413 is about 36226.4739244658. The cubic root of 1312357413 is about 1094.8401351237.

Adding to 1312357413 its reverse (3147532131), we get a palindrome (4459889544).

The spelling of 1312357413 in words is "one billion, three hundred twelve million, three hundred fifty-seven thousand, four hundred thirteen".

Divisors: 1 3 173 519 2528627 7585881 437452471 1312357413