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23899197 = 371138057
BaseRepresentation
bin101101100101…
…0110000111101
31122222012112110
41123022300331
522104233242
62212124233
7410065650
oct133126075
948865473
1023899197
1112543903
128006679
134c4a14a
143261897
15217139c
hex16cac3d

23899197 has 8 divisors (see below), whose sum is σ = 36417856. Its totient is φ = 13656672.

The previous prime is 23899181. The next prime is 23899217. The reversal of 23899197 is 79199832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23899197 - 24 = 23899181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23899157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569008 + ... + 569049.

It is an arithmetic number, because the mean of its divisors is an integer number (4552232).

Almost surely, 223899197 is an apocalyptic number.

It is an amenable number.

23899197 is a deficient number, since it is larger than the sum of its proper divisors (12518659).

23899197 is a wasteful number, since it uses less digits than its factorization.

23899197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138067.

The product of its digits is 244944, while the sum is 48.

The square root of 23899197 is about 4888.6804968212. The cubic root of 23899197 is about 288.0455054446.

The spelling of 23899197 in words is "twenty-three million, eight hundred ninety-nine thousand, one hundred ninety-seven".

Divisors: 1 3 7 21 1138057 3414171 7966399 23899197