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23842330 = 2517140249
BaseRepresentation
bin101101011110…
…0111000011010
31122212022112021
41122330320122
522100423310
62211005054
7406441111
oct132747032
948768467
1023842330
1112505106
127b9978a
134c2a2b5
143248c78
15215e5da
hex16bce1a

23842330 has 16 divisors (see below), whose sum is σ = 45441000. Its totient is φ = 8975872.

The previous prime is 23842327. The next prime is 23842369. The reversal of 23842330 is 3324832.

It can be written as a sum of positive squares in 4 ways, for example, as 20948929 + 2893401 = 4577^2 + 1701^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23842295 and 23842304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69955 + ... + 70294.

Almost surely, 223842330 is an apocalyptic number.

23842330 is a deficient number, since it is larger than the sum of its proper divisors (21598670).

23842330 is a wasteful number, since it uses less digits than its factorization.

23842330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140273.

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

The square root of 23842330 is about 4882.8608417607. The cubic root of 23842330 is about 287.8168604822.

The spelling of 23842330 in words is "twenty-three million, eight hundred forty-two thousand, three hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 140249 280498 701245 1402490 2384233 4768466 11921165 23842330