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233155132 = 22721189567
BaseRepresentation
bin11011110010110…
…10101000111100
3121020201111201021
431321122220330
5434141431012
635045153524
75530533400
oct1571325074
9536644637
10233155132
1110a6789a1
12660bb8a4
13393c5422
1422d73100
1515708007
hexde5aa3c

233155132 has 18 divisors (see below), whose sum is σ = 474637632. Its totient is φ = 99923544.

The previous prime is 233155067. The next prime is 233155133. The reversal of 233155132 is 231551332.

It is a super-2 number, since 2×2331551322 = 108722631155874848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 233155097 and 233155106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233155133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 594588 + ... + 594979.

Almost surely, 2233155132 is an apocalyptic number.

It is an amenable number.

233155132 is an abundant number, since it is smaller than the sum of its proper divisors (241482500).

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

233155132 is a wasteful number, since it uses less digits than its factorization.

233155132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189585 (or 1189576 counting only the distinct ones).

The product of its digits is 2700, while the sum is 25.

The square root of 233155132 is about 15269.4181945482. The cubic root of 233155132 is about 615.4814851528.

The spelling of 233155132 in words is "two hundred thirty-three million, one hundred fifty-five thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 49 98 196 1189567 2379134 4758268 8326969 16653938 33307876 58288783 116577566 233155132