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23854340 = 2251192717
BaseRepresentation
bin101101011111…
…1110100000100
31122212221000002
41122333310010
522101314330
62211140432
7406521116
oct132776404
948787002
1023854340
1112513134
127ba4718
134c328c3
14324d3b6
152162e45
hex16bfd04

23854340 has 12 divisors (see below), whose sum is σ = 50094156. Its totient is φ = 9541728.

The previous prime is 23854339. The next prime is 23854343. The reversal of 23854340 is 4345832.

It can be written as a sum of positive squares in 2 ways, for example, as 6482116 + 17372224 = 2546^2 + 4168^2 .

It is not an unprimeable number, because it can be changed into a prime (23854343) 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, 596339 + ... + 596378.

It is an arithmetic number, because the mean of its divisors is an integer number (4174513).

Almost surely, 223854340 is an apocalyptic number.

23854340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23854340 is an abundant number, since it is smaller than the sum of its proper divisors (26239816).

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

23854340 is a wasteful number, since it uses less digits than its factorization.

23854340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192726 (or 1192724 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 23854340 is about 4884.0904987520. The cubic root of 23854340 is about 287.8651793091.

The spelling of 23854340 in words is "twenty-three million, eight hundred fifty-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 1192717 2385434 4770868 5963585 11927170 23854340