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23013443 = 297111177
BaseRepresentation
bin101011111001…
…0100001000011
31121022012111202
41113302201003
521342412233
62141131415
7366416405
oct127624103
947265452
1023013443
1111a99382
127859b6b
1349c9c2b
1430b0b75
152048be8
hex15f2843

23013443 has 8 divisors (see below), whose sum is σ = 24144480. Its totient is φ = 21904960.

The previous prime is 23013433. The next prime is 23013449. The reversal of 23013443 is 34431032.

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

It is a cyclic number.

It is not a de Polignac number, because 23013443 - 26 = 23013379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23013449) 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, 3530 + ... + 7647.

It is an arithmetic number, because the mean of its divisors is an integer number (3018060).

Almost surely, 223013443 is an apocalyptic number.

23013443 is a deficient number, since it is larger than the sum of its proper divisors (1131037).

23013443 is a wasteful number, since it uses less digits than its factorization.

23013443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11277.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 23013443 is about 4797.2328482157. The cubic root of 23013443 is about 284.4420931417.

Adding to 23013443 its reverse (34431032), we get a palindrome (57444475).

The spelling of 23013443 in words is "twenty-three million, thirteen thousand, four hundred forty-three".

Divisors: 1 29 71 2059 11177 324133 793567 23013443