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23898379 = 171405787
BaseRepresentation
bin101101100101…
…0100100001011
31122222011102011
41123022210023
522104222004
62212120351
7410063401
oct133124413
948864364
1023898379
111254322a
1280060b7
134c4996b
143261471
152171004
hex16ca90b

23898379 has 4 divisors (see below), whose sum is σ = 25304184. Its totient is φ = 22492576.

The previous prime is 23898377. The next prime is 23898401. The reversal of 23898379 is 97389832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23898379 - 21 = 23898377 is a prime.

It is a super-2 number, since 2×238983792 = 1142265037655282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23898373) 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, 702877 + ... + 702910.

It is an arithmetic number, because the mean of its divisors is an integer number (6326046).

Almost surely, 223898379 is an apocalyptic number.

23898379 is a deficient number, since it is larger than the sum of its proper divisors (1405805).

23898379 is a wasteful number, since it uses less digits than its factorization.

23898379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405804.

The product of its digits is 653184, while the sum is 49.

The square root of 23898379 is about 4888.5968334482. The cubic root of 23898379 is about 288.0422190871.

The spelling of 23898379 in words is "twenty-three million, eight hundred ninety-eight thousand, three hundred seventy-nine".

Divisors: 1 17 1405787 23898379