Search a number
-
+
23257884 = 22313295397
BaseRepresentation
bin101100010111…
…0001100011100
31121202121211010
41120232030130
521423223014
62150255220
7401455146
oct130561434
947677733
1023257884
1112145aa1
127957510
134a84280
143135c96
152096359
hex162e31c

23257884 has 96 divisors (see below), whose sum is σ = 62233920. Its totient is φ = 6709248.

The previous prime is 23257877. The next prime is 23257909. The reversal of 23257884 is 48875232.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239724 + ... + 239820.

It is an arithmetic number, because the mean of its divisors is an integer number (648270).

Almost surely, 223257884 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 23257884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31116960).

23257884 is an abundant number, since it is smaller than the sum of its proper divisors (38976036).

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

23257884 is a wasteful number, since it uses less digits than its factorization.

23257884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 197 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 23257884 is about 4822.6428439187. The cubic root of 23257884 is about 285.4456309415.

The spelling of 23257884 in words is "twenty-three million, two hundred fifty-seven thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 12 13 26 29 39 52 53 58 78 87 97 106 116 156 159 174 194 212 291 318 348 377 388 582 636 689 754 1131 1164 1261 1378 1508 1537 2067 2262 2522 2756 2813 3074 3783 4134 4524 4611 5044 5141 5626 6148 7566 8268 8439 9222 10282 11252 15132 15423 16878 18444 19981 20564 30846 33756 36569 39962 59943 61692 66833 73138 79924 109707 119886 133666 146276 149089 200499 219414 239772 267332 298178 400998 438828 447267 596356 801996 894534 1789068 1938157 3876314 5814471 7752628 11628942 23257884