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1313691282 = 23285432
BaseRepresentation
bin100111001001101…
…0101011010010010
310101112221102122200
41032103111122102
510142301110112
6334204544030
744361122511
oct11623253222
93345842580
101313691282
116145a9782
12307b52016
1317c21ca27
14c6686678
157a4e6cdc
hex4e4d5692

1313691282 has 18 divisors (see below), whose sum is σ = 2846664327. Its totient is φ = 437845836.

The previous prime is 1313691277. The next prime is 1313691307. The reversal of 1313691282 is 2821963131.

1313691282 is a `hidden beast` number, since 1 + 313 + 69 + 1 + 282 = 666.

It can be written as a sum of positive squares in only one way, i.e., 656845641 + 656845641 = 25629^2 + 25629^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅BA, here for A=2, B=25629.

It is a super-3 number, since 3×13136912823 (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 149503 + ... + 158045.

Almost surely, 21313691282 is an apocalyptic number.

1313691282 is an abundant number, since it is smaller than the sum of its proper divisors (1532973045).

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

1313691282 is an frugal number, since it uses more digits than its factorization.

1313691282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17094 (or 8548 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 1313691282 is about 36244.8793900601. The cubic root of 1313691282 is about 1095.2109382831.

It can be divided in two parts, 131369 and 1282, that added together give a cube (132651 = 513).

The spelling of 1313691282 in words is "one billion, three hundred thirteen million, six hundred ninety-one thousand, two hundred eighty-two".

Divisors: 1 2 3 6 9 18 8543 17086 25629 51258 76887 153774 72982849 145965698 218948547 437897094 656845641 1313691282