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1313201379 = 3762533399
BaseRepresentation
bin100111001000101…
…1101110011100011
310101112000112122010
41032101131303203
510142134421004
6334150244003
744354012310
oct11621356343
93345015563
101313201379
116142a46a6
12307956603
1317c0aaa49
14c6599d07
157a44ba89
hex4e45dce3

1313201379 has 8 divisors (see below), whose sum is σ = 2001068800. Its totient is φ = 750400776.

The previous prime is 1313201377. The next prime is 1313201411. The reversal of 1313201379 is 9731023131.

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

It is not a de Polignac number, because 1313201379 - 21 = 1313201377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313201377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31266679 + ... + 31266720.

It is an arithmetic number, because the mean of its divisors is an integer number (250133600).

Almost surely, 21313201379 is an apocalyptic number.

1313201379 is a deficient number, since it is larger than the sum of its proper divisors (687867421).

1313201379 is an equidigital number, since it uses as much as digits as its factorization.

1313201379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62533409.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 1313201379 is about 36238.1205224554. The cubic root of 1313201379 is about 1095.0747789885.

The spelling of 1313201379 in words is "one billion, three hundred thirteen million, two hundred one thousand, three hundred seventy-nine".

Divisors: 1 3 7 21 62533399 187600197 437733793 1313201379