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2013337913 = 2387536431
BaseRepresentation
bin111100000000001…
…0001100100111001
312012022110011101212
41320000101210321
513110403303123
6531440452505
7100615042556
oct17000214471
95168404355
102013337913
11943527634
1248231a135
13261167312
1415156ba2d
15bbb49878
hex78011939

2013337913 has 4 divisors (see below), whose sum is σ = 2100874368. Its totient is φ = 1925801460.

The previous prime is 2013337903. The next prime is 2013337981. The reversal of 2013337913 is 3197333102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3197333102 = 21598666551.

It is a cyclic number.

It is not a de Polignac number, because 2013337913 - 28 = 2013337657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2013337913.

It is not an unprimeable number, because it can be changed into a prime (2013337903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43768193 + ... + 43768238.

It is an arithmetic number, because the mean of its divisors is an integer number (525218592).

Almost surely, 22013337913 is an apocalyptic number.

2013337913 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2013337913 is a deficient number, since it is larger than the sum of its proper divisors (87536455).

2013337913 is an equidigital number, since it uses as much as digits as its factorization.

2013337913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87536454.

The product of its (nonzero) digits is 10206, while the sum is 32.

The square root of 2013337913 is about 44870.2341536123. The cubic root of 2013337913 is about 1262.7156329783.

The spelling of 2013337913 in words is "two billion, thirteen million, three hundred thirty-seven thousand, nine hundred thirteen".

Divisors: 1 23 87536431 2013337913