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23198208308 = 221119191145283
BaseRepresentation
bin10101100110101110…
…001001000100110100
32012212201112002021022
4111212232021010310
5340002220131213
614353534040312
71450605342242
oct254656110464
965781462238
1023198208308
119924869290
1245b5049098
132259169aa2
1411a0d65792
1590b913308
hex566b89134

23198208308 has 48 divisors (see below), whose sum is σ = 46862807040. Its totient is φ = 9937288800.

The previous prime is 23198208281. The next prime is 23198208323. The reversal of 23198208308 is 80380289132.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

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, 87035 + ... + 232317.

It is an arithmetic number, because the mean of its divisors is an integer number (976308480).

Almost surely, 223198208308 is an apocalyptic number.

It is an amenable number.

23198208308 is an abundant number, since it is smaller than the sum of its proper divisors (23664598732).

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

23198208308 is a wasteful number, since it uses less digits than its factorization.

23198208308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145508 (or 145506 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 23198208308 in words is "twenty-three billion, one hundred ninety-eight million, two hundred eight thousand, three hundred eight".

Divisors: 1 2 4 11 19 22 38 44 76 191 209 382 418 764 836 2101 3629 4202 7258 8404 14516 39919 79838 145283 159676 290566 581132 1598113 2760377 3196226 5520754 6392452 11041508 27749053 30364147 55498106 60728294 110996212 121456588 305239583 527232007 610479166 1054464014 1220958332 2108928028 5799552077 11599104154 23198208308