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1313810980 = 22571947977
BaseRepresentation
bin100111001001111…
…0010101000100100
310101120011111211221
41032103302220210
510142313422410
6334211310124
744362131466
oct11623625044
93346144757
101313810980
116146806a9
12307bab344
1317c262361
14c66b8136
157a51c4da
hex4e4f2a24

1313810980 has 48 divisors (see below), whose sum is σ = 2803683456. Its totient is φ = 517045760.

The previous prime is 1313810951. The next prime is 1313810987. The reversal of 1313810980 is 890183131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1313810987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1344252 + ... + 1345228.

It is an arithmetic number, because the mean of its divisors is an integer number (58410072).

Almost surely, 21313810980 is an apocalyptic number.

1313810980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313810980 is an abundant number, since it is smaller than the sum of its proper divisors (1489872476).

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

1313810980 is a wasteful number, since it uses less digits than its factorization.

1313810980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004 (or 2002 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 1313810980 is about 36246.5305925960. The cubic root of 1313810980 is about 1095.2442009375.

The spelling of 1313810980 in words is "one billion, three hundred thirteen million, eight hundred ten thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 947 977 1420 1894 1954 3788 3908 4735 4885 9470 9770 18940 19540 67237 69367 134474 138734 268948 277468 336185 346835 672370 693670 925219 1344740 1387340 1850438 3700876 4626095 9252190 18504380 65690549 131381098 262762196 328452745 656905490 1313810980