Search a number
-
+
23008956 = 2231743261
BaseRepresentation
bin101011111000…
…1011010111100
31121021222100120
41113301122330
521342241311
62141054540
7366400335
oct127613274
947258316
1023008956
1111a95a73
127857450
1349c7b89
1430ad28c
152047706
hex15f16bc

23008956 has 72 divisors (see below), whose sum is σ = 59152464. Its totient is φ = 6935040.

The previous prime is 23008949. The next prime is 23008957. The reversal of 23008956 is 65980032.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23008957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 377166 + ... + 377226.

It is an arithmetic number, because the mean of its divisors is an integer number (821562).

Almost surely, 223008956 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 23008956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29576232).

23008956 is an abundant number, since it is smaller than the sum of its proper divisors (36143508).

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

23008956 is a wasteful number, since it uses less digits than its factorization.

23008956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 23008956 is about 4796.7651599802. The cubic root of 23008956 is about 284.4236057641.

Adding to 23008956 its reverse (65980032), we get a palindrome (88988988).

The spelling of 23008956 in words is "twenty-three million, eight thousand, nine hundred fifty-six".

Divisors: 1 2 3 4 6 12 17 34 43 51 61 68 86 102 122 129 172 183 204 244 258 366 516 731 732 1037 1462 1849 2074 2193 2623 2924 3111 3698 4148 4386 5246 5547 6222 7396 7869 8772 10492 11094 12444 15738 22188 31433 31476 44591 62866 89182 94299 112789 125732 133773 178364 188598 225578 267546 338367 377196 451156 535092 676734 1353468 1917413 3834826 5752239 7669652 11504478 23008956