Search a number
-
+
23020992 = 2632172351
BaseRepresentation
bin101011111010…
…0010111000000
31121022120212100
41113310113000
521343132432
62141230400
7366450411
oct127642700
947276770
1023020992
1111aa4015
127862400
134a004b7
1430b3808
15204b07c
hex15f45c0

23020992 has 84 divisors (see below), whose sum is σ = 69896736. Its totient is φ = 7219200.

The previous prime is 23020961. The next prime is 23020997. The reversal of 23020992 is 29902032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8617 + ... + 10967.

It is an arithmetic number, because the mean of its divisors is an integer number (832104).

Almost surely, 223020992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23020992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34948368).

23020992 is an abundant number, since it is smaller than the sum of its proper divisors (46875744).

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

23020992 is a wasteful number, since it uses less digits than its factorization.

23020992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386 (or 2373 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 23020992 is about 4798.0195914565. The cubic root of 23020992 is about 284.4731911774.

The spelling of 23020992 in words is "twenty-three million, twenty thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 64 68 72 96 102 136 144 153 192 204 272 288 306 408 544 576 612 816 1088 1224 1632 2351 2448 3264 4702 4896 7053 9404 9792 14106 18808 21159 28212 37616 39967 42318 56424 75232 79934 84636 112848 119901 150464 159868 169272 225696 239802 319736 338544 359703 451392 479604 639472 677088 719406 959208 1278944 1354176 1438812 1918416 2557888 2877624 3836832 5755248 7673664 11510496 23020992