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23013211242 = 237613189371
BaseRepresentation
bin10101011011101100…
…011011110001101010
32012101211102021000010
4111123230123301222
5334112340224432
614323324552350
71443201032220
oct253354336152
965354367003
1023013211242
11983a3a324a
1245630b26b6
132229a36578
14118456ab10
158ea56e3cc
hex55bb1bc6a

23013211242 has 32 divisors (see below), whose sum is σ = 52610793984. Its totient is φ = 6574057200.

The previous prime is 23013211187. The next prime is 23013211267. The reversal of 23013211242 is 24211231032.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212817 + ... + 302187.

It is an arithmetic number, because the mean of its divisors is an integer number (1644087312).

Almost surely, 223013211242 is an apocalyptic number.

23013211242 is an abundant number, since it is smaller than the sum of its proper divisors (29597582742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23013211242 is a wasteful number, since it uses less digits than its factorization.

23013211242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95514.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 23013211242 its reverse (24211231032), we get a palindrome (47224442274).

The spelling of 23013211242 in words is "twenty-three billion, thirteen million, two hundred eleven thousand, two hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 6131 12262 18393 36786 42917 85834 89371 128751 178742 257502 268113 536226 625597 1251194 1876791 3753582 547933601 1095867202 1643800803 3287601606 3835535207 7671070414 11506605621 23013211242