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23213009100 = 2235277939929
BaseRepresentation
bin10101100111100110…
…100110100011001100
32012220202101001010210
4111213212212203030
5340020012242400
614355223202420
71451145215241
oct254746464314
965822331123
1023213009100
119932158346
1245b9ba6410
13225c24c858
1411a2cd95c8
1590cd88950
hex5679a68cc

23213009100 has 72 divisors (see below), whose sum is σ = 67178356560. Its totient is φ = 6188718080.

The previous prime is 23213009069. The next prime is 23213009101. The reversal of 23213009100 is 190031232.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23213009101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2332936 + ... + 2342864.

It is an arithmetic number, because the mean of its divisors is an integer number (933032730).

Almost surely, 223213009100 is an apocalyptic number.

23213009100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23213009100 is an abundant number, since it is smaller than the sum of its proper divisors (43965347460).

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

23213009100 is a wasteful number, since it uses less digits than its factorization.

23213009100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17739 (or 17732 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The spelling of 23213009100 in words is "twenty-three billion, two hundred thirteen million, nine thousand, one hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 7793 9929 15586 19858 23379 29787 31172 38965 39716 46758 49645 59574 77930 93516 99290 116895 119148 148935 155860 194825 198580 233790 248225 297870 389650 467580 496450 584475 595740 744675 779300 992900 1168950 1489350 2337900 2978700 77376697 154753394 232130091 309506788 386883485 464260182 773766970 928520364 1160650455 1547533940 1934417425 2321300910 3868834850 4642601820 5803252275 7737669700 11606504550 23213009100