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230113632 = 25371720143
BaseRepresentation
bin11011011011101…
…00000101100000
3121000222222120010
431231310011200
5432402114012
634500044520
75462635140
oct1555640540
9530888503
10230113632
11108990861
1265093740
133889bc18
14227c0920
1515306c3c
hexdb74160

230113632 has 96 divisors (see below), whose sum is σ = 730985472. Its totient is φ = 61876224.

The previous prime is 230113613. The next prime is 230113633. The reversal of 230113632 is 236311032.

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

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 230113599 and 230113608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230113633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1353 + ... + 21495.

It is an arithmetic number, because the mean of its divisors is an integer number (7614432).

Almost surely, 2230113632 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 230113632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365492736).

230113632 is an abundant number, since it is smaller than the sum of its proper divisors (500871840).

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

230113632 is a wasteful number, since it uses less digits than its factorization.

230113632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20180 (or 20172 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 230113632 is about 15169.4967615936. The cubic root of 230113632 is about 612.7934516090.

Adding to 230113632 its reverse (236311032), we get a palindrome (466424664).

The spelling of 230113632 in words is "two hundred thirty million, one hundred thirteen thousand, six hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 17 21 24 28 32 34 42 48 51 56 68 84 96 102 112 119 136 168 204 224 238 272 336 357 408 476 544 672 714 816 952 1428 1632 1904 2856 3808 5712 11424 20143 40286 60429 80572 120858 141001 161144 241716 282002 322288 342431 423003 483432 564004 644576 684862 846006 966864 1027293 1128008 1369724 1692012 1933728 2054586 2256016 2397017 2739448 3384024 4109172 4512032 4794034 5478896 6768048 7191051 8218344 9588068 10957792 13536096 14382102 16436688 19176136 28764204 32873376 38352272 57528408 76704544 115056816 230113632