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23855216 = 2471117267
BaseRepresentation
bin101101100000…
…0000001110000
31122212222012112
41123000001300
522101331331
62211144452
7406523510
oct133000160
948788175
1023855216
1112513860
127ba5128
134c33118
14324d840
15216332b
hex16c0070

23855216 has 120 divisors (see below), whose sum is σ = 62126976. Its totient is φ = 8616960.

The previous prime is 23855177. The next prime is 23855243. The reversal of 23855216 is 61255832.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356015 + ... + 356081.

Almost surely, 223855216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23855216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31063488).

23855216 is an abundant number, since it is smaller than the sum of its proper divisors (38271760).

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

23855216 is a wasteful number, since it uses less digits than its factorization.

23855216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 104 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 23855216 is about 4884.1801768567. The cubic root of 23855216 is about 287.8687030119.

The spelling of 23855216 in words is "twenty-three million, eight hundred fifty-five thousand, two hundred sixteen".

Divisors: 1 2 4 7 8 11 14 16 17 22 28 34 44 56 67 68 77 88 112 119 134 136 154 176 187 238 268 272 289 308 374 469 476 536 578 616 737 748 938 952 1072 1139 1156 1232 1309 1474 1496 1876 1904 2023 2278 2312 2618 2948 2992 3179 3752 4046 4556 4624 5159 5236 5896 6358 7504 7973 8092 9112 10318 10472 11792 12529 12716 15946 16184 18224 19363 20636 20944 22253 25058 25432 31892 32368 38726 41272 44506 50116 50864 63784 77452 82544 87703 89012 100232 127568 135541 154904 175406 178024 200464 212993 271082 309808 350812 356048 425986 542164 701624 851972 1084328 1403248 1490951 1703944 2168656 2981902 3407888 5963804 11927608 23855216