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134868013 = 721418999
BaseRepresentation
bin10000000100111…
…10110000101101
3100101210000010121
420002132300231
5234011234023
621214404541
73225234130
oct1002366055
9311700117
10134868013
116a147375
1239200751
1321c31477
1413caa217
15bc90d5d
hex809ec2d

134868013 has 8 divisors (see below), whose sum is σ = 154224000. Its totient is φ = 115534320.

The previous prime is 134868007. The next prime is 134868049. The reversal of 134868013 is 310868431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134868013 - 25 = 134867981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134868013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134868053) 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, 10488 + ... + 19486.

It is an arithmetic number, because the mean of its divisors is an integer number (19278000).

Almost surely, 2134868013 is an apocalyptic number.

It is an amenable number.

134868013 is a deficient number, since it is larger than the sum of its proper divisors (19355987).

134868013 is an equidigital number, since it uses as much as digits as its factorization.

134868013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11147.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 134868013 is about 11613.2688335369. The cubic root of 134868013 is about 512.8255483084.

The spelling of 134868013 in words is "one hundred thirty-four million, eight hundred sixty-eight thousand, thirteen".

Divisors: 1 7 2141 8999 14987 62993 19266859 134868013