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1313243948 = 2217315910559
BaseRepresentation
bin100111001000110…
…1000001100101100
310101112002201000202
41032101220030230
510142142301243
6334151213032
744354250362
oct11621501454
93345081022
101313243948
11614323685
12307977178
1317c0c4233
14c65ab632
157a4594b8
hex4e46832c

1313243948 has 48 divisors (see below), whose sum is σ = 2554675200. Its totient is φ = 587869440.

The previous prime is 1313243941. The next prime is 1313243959. The reversal of 1313243948 is 8493423131.

It is not an unprimeable number, because it can be changed into a prime (1313243941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119093 + ... + 129651.

It is an arithmetic number, because the mean of its divisors is an integer number (53222400).

Almost surely, 21313243948 is an apocalyptic number.

It is an amenable number.

1313243948 is a deficient number, since it is larger than the sum of its proper divisors (1241431252).

1313243948 is a wasteful number, since it uses less digits than its factorization.

1313243948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10670 (or 10668 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 1313243948 is about 36238.7078687969. The cubic root of 1313243948 is about 1095.0866115821.

The spelling of 1313243948 in words is "one billion, three hundred thirteen million, two hundred forty-three thousand, nine hundred forty-eight".

Divisors: 1 2 4 17 31 34 59 62 68 118 124 236 527 1003 1054 1829 2006 2108 3658 4012 7316 10559 21118 31093 42236 62186 124372 179503 327329 359006 622981 654658 718012 1245962 1309316 2491924 5564593 10590677 11129186 19312411 21181354 22258372 38624822 42362708 77249644 328310987 656621974 1313243948