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233883040 = 2551461769
BaseRepresentation
bin11011111000011…
…00010110100000
3121022002111012211
431330030112200
5434333224130
635112531504
75536654516
oct1574142640
9538074184
10233883040
11110025876
12663b0b94
13395bb841
14230c24b6
15157eda2a
hexdf0c5a0

233883040 has 24 divisors (see below), whose sum is σ = 552549060. Its totient is φ = 93553152.

The previous prime is 233882963. The next prime is 233883047. The reversal of 233883040 is 40388332.

It can be written as a sum of positive squares in 2 ways, for example, as 218921616 + 14961424 = 14796^2 + 3868^2 .

It is a junction number, because it is equal to n+sod(n) for n = 233882993 and 233883011.

It is not an unprimeable number, because it can be changed into a prime (233883047) 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 3 ways as a sum of consecutive naturals, for example, 730725 + ... + 731044.

Almost surely, 2233883040 is an apocalyptic number.

233883040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233883040 is an abundant number, since it is smaller than the sum of its proper divisors (318666020).

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

233883040 is a wasteful number, since it uses less digits than its factorization.

233883040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461784 (or 1461776 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 233883040 is about 15293.2351057584. The cubic root of 233883040 is about 616.1213287745.

The spelling of 233883040 in words is "two hundred thirty-three million, eight hundred eighty-three thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1461769 2923538 5847076 7308845 11694152 14617690 23388304 29235380 46776608 58470760 116941520 233883040