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23181650268 = 2237647426541
BaseRepresentation
bin10101100101101110…
…111110100101011100
32012211120100211220120
4111211232332211130
5334434000302033
614352143114540
71450314530130
oct254556764534
965746324816
1023181650268
119916489a57
1245ab5a2a50
1322558c022a
14119ca953c0
1590a2421b3
hex565bbe95c

23181650268 has 48 divisors (see below), whose sum is σ = 61913424384. Its totient is φ = 6613076160.

The previous prime is 23181650263. The next prime is 23181650273. The reversal of 23181650268 is 86205618132.

It is an interprime number because it is at equal distance from previous prime (23181650263) and next prime (23181650273).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23181650263) 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, 158923 + ... + 267618.

It is an arithmetic number, because the mean of its divisors is an integer number (1289863008).

Almost surely, 223181650268 is an apocalyptic number.

23181650268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23181650268 is an abundant number, since it is smaller than the sum of its proper divisors (38731774116).

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

23181650268 is a wasteful number, since it uses less digits than its factorization.

23181650268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427202 (or 427200 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 23181650268 in words is "twenty-three billion, one hundred eighty-one million, six hundred fifty thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 647 1294 1941 2588 3882 4529 7764 9058 13587 18116 27174 54348 426541 853082 1279623 1706164 2559246 2985787 5118492 5971574 8957361 11943148 17914722 35829444 275972027 551944054 827916081 1103888108 1655832162 1931804189 3311664324 3863608378 5795412567 7727216756 11590825134 23181650268