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23870541 = 37956847
BaseRepresentation
bin101101100001…
…1110001001101
31122220202020010
41123003301031
522102324131
62211343433
7406616262
oct133036115
948822203
1023870541
1112524322
127bb1b79
134c3a0a6
143255269
152167b46
hex16c3c4d

23870541 has 4 divisors (see below), whose sum is σ = 31827392. Its totient is φ = 15913692.

The previous prime is 23870537. The next prime is 23870549. The reversal of 23870541 is 14507832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23870541 - 22 = 23870537 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23870499 and 23870508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23870549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3978421 + ... + 3978426.

It is an arithmetic number, because the mean of its divisors is an integer number (7956848).

Almost surely, 223870541 is an apocalyptic number.

It is an amenable number.

23870541 is a deficient number, since it is larger than the sum of its proper divisors (7956851).

23870541 is an equidigital number, since it uses as much as digits as its factorization.

23870541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7956850.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 23870541 is about 4885.7487655425. The cubic root of 23870541 is about 287.9303337473.

The spelling of 23870541 in words is "twenty-three million, eight hundred seventy thousand, five hundred forty-one".

Divisors: 1 3 7956847 23870541