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23285185404 = 22313832917921
BaseRepresentation
bin10101101011111001…
…111011101101111100
32020002210011222102020
4111223321323231330
5340142001413104
614410322200140
71453012544625
oct255371735574
966083158366
1023285185404
119969975488
12461a1b3050
1322711a0b20
1411ac726a4c
159143942d9
hex56be7bb7c

23285185404 has 48 divisors (see below), whose sum is σ = 58521781920. Its totient is φ = 7163412480.

The previous prime is 23285185369. The next prime is 23285185423. The reversal of 23285185404 is 40458158232.

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, 1290364 + ... + 1308284.

It is an arithmetic number, because the mean of its divisors is an integer number (1219203790).

Almost surely, 223285185404 is an apocalyptic number.

It is an amenable number.

23285185404 is an abundant number, since it is smaller than the sum of its proper divisors (35236596516).

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

23285185404 is a wasteful number, since it uses less digits than its factorization.

23285185404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26270 (or 26268 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 42.

The spelling of 23285185404 in words is "twenty-three billion, two hundred eighty-five million, one hundred eighty-five thousand, four hundred four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 8329 16658 17921 24987 33316 35842 49974 53763 71684 99948 107526 108277 215052 216554 232973 324831 433108 465946 649662 698919 931892 1299324 1397838 2795676 149264009 298528018 447792027 597056036 895584054 1791168108 1940432117 3880864234 5821296351 7761728468 11642592702 23285185404