Search a number
-
+
23294420 = 22517131523
BaseRepresentation
bin101100011011…
…1000111010100
31121211110221022
41120313013110
521430410140
62151140312
7401666522
oct130670724
947743838
1023294420
1112170496
127974698
134a97aa6
143145312
1520a20b5
hex16371d4

23294420 has 48 divisors (see below), whose sum is σ = 52291008. Its totient is φ = 8686080.

The previous prime is 23294419. The next prime is 23294429. The reversal of 23294420 is 2449232.

It is a self number, because there is not a number n which added to its sum of digits gives 23294420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23294429) 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 15 ways as a sum of consecutive naturals, for example, 44279 + ... + 44801.

It is an arithmetic number, because the mean of its divisors is an integer number (1089396).

Almost surely, 223294420 is an apocalyptic number.

23294420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23294420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26145504).

23294420 is an abundant number, since it is smaller than the sum of its proper divisors (28996588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23294420 is a wasteful number, since it uses less digits than its factorization.

23294420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 23294420 is about 4826.4293219729. The cubic root of 23294420 is about 285.5950223667.

The spelling of 23294420 in words is "twenty-three million, two hundred ninety-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 131 170 262 340 523 524 655 1046 1310 2092 2227 2615 2620 4454 5230 8891 8908 10460 11135 17782 22270 35564 44455 44540 68513 88910 137026 177820 274052 342565 685130 1164721 1370260 2329442 4658884 5823605 11647210 23294420