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232978132 = 221723181823
BaseRepresentation
bin11011110001011…
…11011011010100
3121020101111220201
431320233123110
5434120300012
635041310244
75526165352
oct1570573324
9536344821
10232978132
1110a567a12
1266035384
13393629aa
1422d287d2
15156c0857
hexde2f6d4

232978132 has 48 divisors (see below), whose sum is σ = 453503232. Its totient is φ = 104163840.

The previous prime is 232978121. The next prime is 232978139. The reversal of 232978132 is 231879232.

It is a junction number, because it is equal to n+sod(n) for n = 232978091 and 232978100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232978139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282673 + ... + 283495.

It is an arithmetic number, because the mean of its divisors is an integer number (9447984).

Almost surely, 2232978132 is an apocalyptic number.

It is an amenable number.

232978132 is a deficient number, since it is larger than the sum of its proper divisors (220525100).

232978132 is a wasteful number, since it uses less digits than its factorization.

232978132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 1046 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 232978132 is about 15263.6211955093. The cubic root of 232978132 is about 615.3256978866.

The spelling of 232978132 in words is "two hundred thirty-two million, nine hundred seventy-eight thousand, one hundred thirty-two".

Divisors: 1 2 4 17 23 34 46 68 92 181 362 391 724 782 823 1564 1646 3077 3292 4163 6154 8326 12308 13991 16652 18929 27982 37858 55964 70771 75716 141542 148963 283084 297926 321793 595852 643586 1287172 2532371 3426149 5064742 6852298 10129484 13704596 58244533 116489066 232978132