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23172161470 = 2541295319139
BaseRepresentation
bin10101100101001010…
…110001111110111110
32012210220111202201121
4111211022301332332
5334424033131340
614351203501154
71450141060033
oct254512617676
965726452647
1023172161470
119911098977
1245a83877ba
13225394a263
14119b70538a
159094ba94a
hex5652b1fbe

23172161470 has 32 divisors (see below), whose sum is σ = 42743907360. Its totient is φ = 9039260160.

The previous prime is 23172161461. The next prime is 23172161483. The reversal of 23172161470 is 7416127132.

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, 1201161 + ... + 1220299.

It is an arithmetic number, because the mean of its divisors is an integer number (1335747105).

Almost surely, 223172161470 is an apocalyptic number.

23172161470 is a deficient number, since it is larger than the sum of its proper divisors (19571745890).

23172161470 is a wasteful number, since it uses less digits than its factorization.

23172161470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22140.

The product of its (nonzero) digits is 14112, while the sum is 34.

The spelling of 23172161470 in words is "twenty-three billion, one hundred seventy-two million, one hundred sixty-one thousand, four hundred seventy".

Divisors: 1 2 5 10 41 82 205 410 2953 5906 14765 19139 29530 38278 95695 121073 191390 242146 605365 784699 1210730 1569398 3923495 7846990 56517467 113034934 282587335 565174670 2317216147 4634432294 11586080735 23172161470