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1313012012 = 221325250231
BaseRepresentation
bin100111001000010…
…1111100100101100
310101111122220212112
41032100233210230
510142112341022
6334142223152
744352263234
oct11620574454
93344586775
101313012012
116141853a4
12307884ab8
1317c0427b0
14c654acc4
157a4108e2
hex4e42f92c

1313012012 has 12 divisors (see below), whose sum is σ = 2474522736. Its totient is φ = 606005520.

The previous prime is 1313011993. The next prime is 1313012027. The reversal of 1313012012 is 2102103131.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12625064 + ... + 12625167.

It is an arithmetic number, because the mean of its divisors is an integer number (206210228).

Almost surely, 21313012012 is an apocalyptic number.

It is an amenable number.

1313012012 is a deficient number, since it is larger than the sum of its proper divisors (1161510724).

1313012012 is a wasteful number, since it uses less digits than its factorization.

1313012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25250248 (or 25250246 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1313012012 is about 36235.5076133894. The cubic root of 1313012012 is about 1095.0221389295.

Adding to 1313012012 its reverse (2102103131), we get a palindrome (3415115143).

The spelling of 1313012012 in words is "one billion, three hundred thirteen million, twelve thousand, twelve".

Divisors: 1 2 4 13 26 52 25250231 50500462 101000924 328253003 656506006 1313012012