Search a number
-
+
23013879 = 372473331
BaseRepresentation
bin101011111001…
…0100111110111
31121022020002220
41113302213313
521342421004
62141133423
7366420600
oct127624767
947266086
1023013879
1111a99739
12785a273
1349ca1a5
1430b0da7
152048dd9
hex15f29f7

23013879 has 24 divisors (see below), whose sum is σ = 36465408. Its totient is φ = 12867120.

The previous prime is 23013877. The next prime is 23013911. The reversal of 23013879 is 97831032.

It is not a de Polignac number, because 23013879 - 21 = 23013877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5244 + ... + 8574.

It is an arithmetic number, because the mean of its divisors is an integer number (1519392).

Almost surely, 223013879 is an apocalyptic number.

23013879 is a deficient number, since it is larger than the sum of its proper divisors (13451529).

23013879 is a wasteful number, since it uses less digits than its factorization.

23013879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395 (or 3388 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 23013879 is about 4797.2782908645. The cubic root of 23013879 is about 284.4438894247.

The spelling of 23013879 in words is "twenty-three million, thirteen thousand, eight hundred seventy-nine".

Divisors: 1 3 7 21 47 49 141 147 329 987 2303 3331 6909 9993 23317 69951 156557 163219 469671 489657 1095899 3287697 7671293 23013879