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23383240 = 2351274603
BaseRepresentation
bin101100100110…
…0110011001000
31121222222202221
41121030303020
521441230430
62153103424
7402516466
oct131146310
947888687
1023383240
11122211a1
1279b7b74
134ac934a
143169836
1520bd57a
hex164ccc8

23383240 has 32 divisors (see below), whose sum is σ = 53038080. Its totient is φ = 9277632.

The previous prime is 23383219. The next prime is 23383253. The reversal of 23383240 is 4238332.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2779 + ... + 7381.

It is an arithmetic number, because the mean of its divisors is an integer number (1657440).

Almost surely, 223383240 is an apocalyptic number.

23383240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23383240 is an abundant number, since it is smaller than the sum of its proper divisors (29654840).

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

23383240 is a wasteful number, since it uses less digits than its factorization.

23383240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4741 (or 4737 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 23383240 is about 4835.6219868803. The cubic root of 23383240 is about 285.9575466352.

The spelling of 23383240 in words is "twenty-three million, three hundred eighty-three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 127 254 508 635 1016 1270 2540 4603 5080 9206 18412 23015 36824 46030 92060 184120 584581 1169162 2338324 2922905 4676648 5845810 11691620 23383240