Search a number
-
+
23057788 = 2213443419
BaseRepresentation
bin101011111110…
…1010101111100
31121101110100011
41113331111330
521400322123
62142113004
7366662605
oct127752574
947343304
1023057788
1112019726
12787b764
134a14180
1430c2dac
152056e0d
hex15fd57c

23057788 has 12 divisors (see below), whose sum is σ = 43455160. Its totient is φ = 10642032.

The previous prime is 23057767. The next prime is 23057819. The reversal of 23057788 is 88775032.

It is a self number, because there is not a number n which added to its sum of digits gives 23057788.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 221658 + ... + 221761.

Almost surely, 223057788 is an apocalyptic number.

It is an amenable number.

23057788 is a deficient number, since it is larger than the sum of its proper divisors (20397372).

23057788 is a wasteful number, since it uses less digits than its factorization.

23057788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443436 (or 443434 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 23057788 is about 4801.8525591692. The cubic root of 23057788 is about 284.6246747094.

The spelling of 23057788 in words is "twenty-three million, fifty-seven thousand, seven hundred eighty-eight".

Divisors: 1 2 4 13 26 52 443419 886838 1773676 5764447 11528894 23057788