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13010113012 = 2213376762013
BaseRepresentation
bin11000001110111011…
…01001000111110100
31020120200211012220111
430013131221013310
5203121042104022
65550551512404
7640255064431
oct140735510764
936520735814
1013010113012
115576962516
122631088704
1312c4502b30
148b5c3cb88
1551229d477
hex3077691f4

13010113012 has 24 divisors (see below), whose sum is σ = 25181740136. Its totient is φ = 5842378368.

The previous prime is 13010112979. The next prime is 13010113013. The reversal of 13010113012 is 21031101031.

It can be written as a sum of positive squares in 4 ways, for example, as 2880898276 + 10129214736 = 53674^2 + 100644^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 13010112983 and 13010113001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13010113013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3379083 + ... + 3382930.

Almost surely, 213010113012 is an apocalyptic number.

It is an amenable number.

13010113012 is a deficient number, since it is larger than the sum of its proper divisors (12171627124).

13010113012 is a wasteful number, since it uses less digits than its factorization.

13010113012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762067 (or 6762065 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13010113012 its reverse (21031101031), we get a palindrome (34041214043).

The spelling of 13010113012 in words is "thirteen billion, ten million, one hundred thirteen thousand, twelve".

Divisors: 1 2 4 13 26 37 52 74 148 481 962 1924 6762013 13524026 27048052 87906169 175812338 250194481 351624676 500388962 1000777924 3252528253 6505056506 13010113012