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1313900880 = 24355474587
BaseRepresentation
bin100111001010000…
…1000100101010000
310101120100002011120
41032110020211100
510142324312010
6334213242240
744362654545
oct11624104520
93346302146
101313900880
116147321a6
12308033380
1317c294256
14c66dcbcc
157a538e70
hex4e508950

1313900880 has 40 divisors (see below), whose sum is σ = 4073093472. Its totient is φ = 350373504.

The previous prime is 1313900867. The next prime is 1313900897. The reversal of 1313900880 is 880093131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2737054 + ... + 2737533.

Almost surely, 21313900880 is an apocalyptic number.

1313900880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313900880 is an abundant number, since it is smaller than the sum of its proper divisors (2759192592).

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

1313900880 is a wasteful number, since it uses less digits than its factorization.

1313900880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474603 (or 5474597 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1313900880 is about 36247.7706900714. The cubic root of 1313900880 is about 1095.2691817528.

The spelling of 1313900880 in words is "one billion, three hundred thirteen million, nine hundred thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 5474587 10949174 16423761 21898348 27372935 32847522 43796696 54745870 65695044 82118805 87593392 109491740 131390088 164237610 218983480 262780176 328475220 437966960 656950440 1313900880