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1313693560 = 23561538399
BaseRepresentation
bin100111001001101…
…0101111101111000
310101112221112210001
41032103111331320
510142301143220
6334205002344
744361132244
oct11623257570
93345845701
101313693560
11614600463
12307b533b4
1317c220a8a
14c6687424
157a4e780a
hex4e4d5f78

1313693560 has 32 divisors (see below), whose sum is σ = 3004272000. Its totient is φ = 516862080.

The previous prime is 1313693551. The next prime is 1313693593. The reversal of 1313693560 is 653963131.

It is a congruent number.

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, 266760 + ... + 271639.

It is an arithmetic number, because the mean of its divisors is an integer number (93883500).

Almost surely, 21313693560 is an apocalyptic number.

1313693560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313693560 is an abundant number, since it is smaller than the sum of its proper divisors (1690578440).

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

1313693560 is a wasteful number, since it uses less digits than its factorization.

1313693560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538471 (or 538467 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 37.

The square root of 1313693560 is about 36244.9108151751. The cubic root of 1313693560 is about 1095.2115713311.

The spelling of 1313693560 in words is "one billion, three hundred thirteen million, six hundred ninety-three thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 61 122 244 305 488 610 1220 2440 538399 1076798 2153596 2691995 4307192 5383990 10767980 21535960 32842339 65684678 131369356 164211695 262738712 328423390 656846780 1313693560