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1315431204 = 223109619267
BaseRepresentation
bin100111001100111…
…1110001100100100
310101200012211101020
41032121332030210
510143222244304
6334310131140
744411660253
oct11631761444
93350184336
101315431204
11615587a2a
12308650ab0
1317c6ab979
14c69ba79a
157a73c5d9
hex4e67e324

1315431204 has 12 divisors (see below), whose sum is σ = 3069339504. Its totient is φ = 438477064.

The previous prime is 1315431179. The next prime is 1315431223. The reversal of 1315431204 is 4021345131.

It is a happy number.

1315431204 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54809622 + ... + 54809645.

It is an arithmetic number, because the mean of its divisors is an integer number (255778292).

Almost surely, 21315431204 is an apocalyptic number.

It is an amenable number.

1315431204 is an abundant number, since it is smaller than the sum of its proper divisors (1753908300).

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

1315431204 is a wasteful number, since it uses less digits than its factorization.

1315431204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109619274 (or 109619272 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1315431204 is about 36268.8737624978. The cubic root of 1315431204 is about 1095.6942433453.

Adding to 1315431204 its reverse (4021345131), we get a palindrome (5336776335).

The spelling of 1315431204 in words is "one billion, three hundred fifteen million, four hundred thirty-one thousand, two hundred four".

Divisors: 1 2 3 4 6 12 109619267 219238534 328857801 438477068 657715602 1315431204