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23242752 = 211321397
BaseRepresentation
bin101100010101…
…0100000000000
31121201212001200
41120222200000
521422232002
62150101200
7401363061
oct130524000
947655050
1023242752
1112135695
12794a800
134a7a410
143130568
152091b1c
hex162a800

23242752 has 144 divisors (see below), whose sum is σ = 73038420. Its totient is φ = 7077888.

The previous prime is 23242741. The next prime is 23242759. The reversal of 23242752 is 25724232.

23242752 is a `hidden beast` number, since 232 + 427 + 5 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22127616 + 1115136 = 4704^2 + 1056^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (23242759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239568 + ... + 239664.

Almost surely, 223242752 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 23242752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36519210).

23242752 is an abundant number, since it is smaller than the sum of its proper divisors (49795668).

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

23242752 is a wasteful number, since it uses less digits than its factorization.

23242752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 115 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 23242752 is about 4821.0737393241. The cubic root of 23242752 is about 285.3837121476.

Adding to 23242752 its reverse (25724232), we get a palindrome (48966984).

The spelling of 23242752 in words is "twenty-three million, two hundred forty-two thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 64 72 78 96 97 104 117 128 144 156 192 194 208 234 256 288 291 312 384 388 416 468 512 576 582 624 768 776 832 873 936 1024 1152 1164 1248 1261 1536 1552 1664 1746 1872 2048 2304 2328 2496 2522 3072 3104 3328 3492 3744 3783 4608 4656 4992 5044 6144 6208 6656 6984 7488 7566 9216 9312 9984 10088 11349 12416 13312 13968 14976 15132 18432 18624 19968 20176 22698 24832 26624 27936 29952 30264 37248 39936 40352 45396 49664 55872 59904 60528 74496 79872 80704 90792 99328 111744 119808 121056 148992 161408 181584 198656 223488 239616 242112 297984 322816 363168 446976 484224 595968 645632 726336 893952 968448 1291264 1452672 1787904 1936896 2582528 2905344 3873792 5810688 7747584 11621376 23242752