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233405472 = 25323372857
BaseRepresentation
bin11011110100101…
…11110000100000
3121021012020010010
431322113300200
5434222433342
635054404520
75532625266
oct1572276040
9537166103
10233405472
1110a829a93
1266200740
1339482361
1422dda436
151575729c
hexde97c20

233405472 has 96 divisors (see below), whose sum is σ = 656836992. Its totient is φ = 72382464.

The previous prime is 233405453. The next prime is 233405477. The reversal of 233405472 is 274504332.

233405472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×2334054722 = 108956228719085568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (233405477) 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, 80268 + ... + 83124.

It is an arithmetic number, because the mean of its divisors is an integer number (6842052).

Almost surely, 2233405472 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 233405472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328418496).

233405472 is an abundant number, since it is smaller than the sum of its proper divisors (423431520).

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

233405472 is a wasteful number, since it uses less digits than its factorization.

233405472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930 (or 2922 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 30.

The square root of 233405472 is about 15277.6134261867. The cubic root of 233405472 is about 615.7016883585.

The spelling of 233405472 in words is "two hundred thirty-three million, four hundred five thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 23 24 32 37 46 48 69 74 92 96 111 138 148 184 222 276 296 368 444 552 592 736 851 888 1104 1184 1702 1776 2208 2553 2857 3404 3552 5106 5714 6808 8571 10212 11428 13616 17142 20424 22856 27232 34284 40848 45712 65711 68568 81696 91424 105709 131422 137136 197133 211418 262844 274272 317127 394266 422836 525688 634254 788532 845672 1051376 1268508 1577064 1691344 2102752 2431307 2537016 3154128 3382688 4862614 5074032 6308256 7293921 9725228 10148064 14587842 19450456 29175684 38900912 58351368 77801824 116702736 233405472