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1313103040 = 2654395429
BaseRepresentation
bin100111001000100…
…0101110011000000
310101111211112201221
41032101011303000
510142123244130
6334144204424
744353122514
oct11621056300
93344745657
101313103040
11614237827
12307909714
1317c075062
14c6572144
157a42c87a
hex4e445cc0

1313103040 has 56 divisors (see below), whose sum is σ = 3199577040. Its totient is φ = 513020928.

The previous prime is 1313103017. The next prime is 1313103059. The reversal of 1313103040 is 403013131.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33955 + ... + 61474.

Almost surely, 21313103040 is an apocalyptic number.

1313103040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313103040 is an abundant number, since it is smaller than the sum of its proper divisors (1886474000).

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

1313103040 is an equidigital number, since it uses as much as digits as its factorization.

1313103040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95489 (or 95479 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1313103040 is about 36236.7636524014. The cubic root of 1313103040 is about 1095.0474434383.

Adding to 1313103040 its reverse (403013131), we get a palindrome (1716116171).

The spelling of 1313103040 in words is "one billion, three hundred thirteen million, one hundred three thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 43 64 80 86 160 172 215 320 344 430 688 860 1376 1720 2752 3440 6880 13760 95429 190858 381716 477145 763432 954290 1526864 1908580 3053728 3817160 4103447 6107456 7634320 8206894 15268640 16413788 20517235 30537280 32827576 41034470 65655152 82068940 131310304 164137880 262620608 328275760 656551520 1313103040