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23313031100 = 22522089111599
BaseRepresentation
bin10101101101100100…
…001001111110111100
32020011201120200112022
4111231210021332330
5340221113443400
614413155055312
71453501331462
oct255544117674
966151520468
1023313031100
119983664357
1246275a1538
132276ba0378
1411b22d4832
15916a44b85
hex56d909fbc

23313031100 has 36 divisors (see below), whose sum is σ = 50613948000. Its totient is φ = 9320664960.

The previous prime is 23313031043. The next prime is 23313031109. The reversal of 23313031100 is 113031332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313031109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153101 + ... + 264699.

It is an arithmetic number, because the mean of its divisors is an integer number (1405943000).

Almost surely, 223313031100 is an apocalyptic number.

23313031100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23313031100 is an abundant number, since it is smaller than the sum of its proper divisors (27300916900).

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

23313031100 is a wasteful number, since it uses less digits than its factorization.

23313031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113702 (or 113695 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 23313031100 its reverse (113031332), we get a palindrome (23426062432).

The spelling of 23313031100 in words is "twenty-three billion, three hundred thirteen million, thirty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2089 4178 8356 10445 20890 41780 52225 104450 111599 208900 223198 446396 557995 1115990 2231980 2789975 5579950 11159900 233130311 466260622 932521244 1165651555 2331303110 4662606220 5828257775 11656515550 23313031100