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155413013 = 7315313513
BaseRepresentation
bin10010100001101…
…10101000010101
3101211102210120112
421100312220111
5304241204023
623231012405
73564663110
oct1120665025
9354383515
10155413013
117a7aa108
124406a105
1326275982
14168d7577
15d99d478
hex9436a15

155413013 has 16 divisors (see below), whose sum is σ = 186817536. Its totient is φ = 126472320.

The previous prime is 155413007. The next prime is 155413019. The reversal of 155413013 is 310314551.

It is an interprime number because it is at equal distance from previous prime (155413007) and next prime (155413019).

It is a cyclic number.

It is not a de Polignac number, because 155413013 - 28 = 155412757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 155413013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155413019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4745 + ... + 18257.

It is an arithmetic number, because the mean of its divisors is an integer number (11676096).

Almost surely, 2155413013 is an apocalyptic number.

It is an amenable number.

155413013 is a deficient number, since it is larger than the sum of its proper divisors (31404523).

155413013 is a wasteful number, since it uses less digits than its factorization.

155413013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13604.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 155413013 is about 12466.4755644889. The cubic root of 155413013 is about 537.6452254421.

Adding to 155413013 its reverse (310314551), we get a palindrome (465727564).

It can be divided in two parts, 1554 and 13013, that multiplied together give a palindrome (20222202).

The spelling of 155413013 in words is "one hundred fifty-five million, four hundred thirteen thousand, thirteen".

Divisors: 1 7 31 53 217 371 1643 11501 13513 94591 418903 716189 2932321 5013323 22201859 155413013