Search a number
-
+
23242880 = 275231579
BaseRepresentation
bin101100010101…
…0100010000000
31121201212020102
41120222202000
521422233010
62150101532
7401363333
oct130524200
947655212
1023242880
11121357a1
12794a8a8
134a7a4ab
14313061a
152091ba5
hex162a880

23242880 has 64 divisors (see below), whose sum is σ = 58017600. Its totient is φ = 8887296.

The previous prime is 23242867. The next prime is 23242883. The reversal of 23242880 is 8824232.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (23242883) 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, 13931 + ... + 15509.

It is an arithmetic number, because the mean of its divisors is an integer number (906525).

Almost surely, 223242880 is an apocalyptic number.

23242880 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 23242880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29008800).

23242880 is an abundant number, since it is smaller than the sum of its proper divisors (34774720).

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

23242880 is a wasteful number, since it uses less digits than its factorization.

23242880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 23242880 is about 4821.0870143568. The cubic root of 23242880 is about 285.3842360249.

The spelling of 23242880 in words is "twenty-three million, two hundred forty-two thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 23 32 40 46 64 80 92 115 128 160 184 230 320 368 460 640 736 920 1472 1579 1840 2944 3158 3680 6316 7360 7895 12632 14720 15790 25264 31580 36317 50528 63160 72634 101056 126320 145268 181585 202112 252640 290536 363170 505280 581072 726340 1010560 1162144 1452680 2324288 2905360 4648576 5810720 11621440 23242880