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233234920 = 2355830873
BaseRepresentation
bin11011110011011…
…10000111101000
3121020212120011101
431321232013220
5434202004140
635051011144
75531315122
oct1571560750
9536776141
10233234920
1110a722936
1266139ab4
1339422839
1422d94212
151572199a
hexde6e1e8

233234920 has 16 divisors (see below), whose sum is σ = 524778660. Its totient is φ = 93293952.

The previous prime is 233234909. The next prime is 233234921. The reversal of 233234920 is 29432332.

It can be written as a sum of positive squares in 2 ways, for example, as 223981156 + 9253764 = 14966^2 + 3042^2 .

It is not an unprimeable number, because it can be changed into a prime (233234921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2915397 + ... + 2915476.

Almost surely, 2233234920 is an apocalyptic number.

233234920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233234920 is an abundant number, since it is smaller than the sum of its proper divisors (291543740).

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

233234920 is a wasteful number, since it uses less digits than its factorization.

233234920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5830884 (or 5830880 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 233234920 is about 15272.0306442857. The cubic root of 233234920 is about 615.5516851032.

The spelling of 233234920 in words is "two hundred thirty-three million, two hundred thirty-four thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 5830873 11661746 23323492 29154365 46646984 58308730 116617460 233234920