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23934019 = 292149191
BaseRepresentation
bin101101101001…
…1010001000011
31200000222022011
41123103101003
522111342034
62212553351
7410302324
oct133232103
950028264
1023934019
1112567a8a
128022857
134c5cc55
14327044b
15217b864
hex16d3443

23934019 has 12 divisors (see below), whose sum is σ = 25084800. Its totient is φ = 22833440.

The previous prime is 23934017. The next prime is 23934023. The reversal of 23934019 is 91043932.

It is not a de Polignac number, because 23934019 - 21 = 23934017 is a prime.

It is a super-2 number, since 2×239340192 = 1145674530984722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23934017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125214 + ... + 125404.

It is an arithmetic number, because the mean of its divisors is an integer number (2090400).

Almost surely, 223934019 is an apocalyptic number.

23934019 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

23934019 is a deficient number, since it is larger than the sum of its proper divisors (1150781).

23934019 is a wasteful number, since it uses less digits than its factorization.

23934019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 23934019 is about 4892.2406931794. The cubic root of 23934019 is about 288.1853351498.

The spelling of 23934019 in words is "twenty-three million, nine hundred thirty-four thousand, nineteen".

Divisors: 1 29 149 191 841 4321 5539 28459 125309 160631 825311 23934019