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1313340252 = 223715635003
BaseRepresentation
bin100111001000111…
…1111101101011100
310101112021121010120
41032101333231130
510142203342002
6334153234540
744355131220
oct11621775534
93345247116
101313340252
11614389a74
12307a02a50
1317c129013
14c65d4780
157a477cbc
hex4e47fb5c

1313340252 has 24 divisors (see below), whose sum is σ = 3502240896. Its totient is φ = 375240048.

The previous prime is 1313340251. The next prime is 1313340263. The reversal of 1313340252 is 2520433131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313340251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7817418 + ... + 7817585.

It is an arithmetic number, because the mean of its divisors is an integer number (145926704).

Almost surely, 21313340252 is an apocalyptic number.

1313340252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1313340252 is an abundant number, since it is smaller than the sum of its proper divisors (2188900644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313340252 is a wasteful number, since it uses less digits than its factorization.

1313340252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15635017 (or 15635015 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1313340252 is about 36240.0365893855. The cubic root of 1313340252 is about 1095.1133795570.

Adding to 1313340252 its reverse (2520433131), we get a palindrome (3833773383).

The spelling of 1313340252 in words is "one billion, three hundred thirteen million, three hundred forty thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 15635003 31270006 46905009 62540012 93810018 109445021 187620036 218890042 328335063 437780084 656670126 1313340252