Search a number
-
+
23900492 = 22711731063
BaseRepresentation
bin101101100101…
…1000101001100
31122222021022102
41123023011030
522104303432
62212134232
7410102510
oct133130514
948867272
1023900492
1112544880
128007378
134c4a905
143262140
152171962
hex16cb14c

23900492 has 48 divisors (see below), whose sum is σ = 52910592. Its totient is φ = 9175680.

The previous prime is 23900491. The next prime is 23900531. The reversal of 23900492 is 29400932.

It is not an unprimeable number, because it can be changed into a prime (23900491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21953 + ... + 23015.

It is an arithmetic number, because the mean of its divisors is an integer number (1102304).

Almost surely, 223900492 is an apocalyptic number.

23900492 is a gapful number since it is divisible by the number (22) 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 23900492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26455296).

23900492 is an abundant number, since it is smaller than the sum of its proper divisors (29010100).

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

23900492 is a wasteful number, since it uses less digits than its factorization.

23900492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 23900492 is about 4888.8129438546. The cubic root of 23900492 is about 288.0507080209.

The spelling of 23900492 in words is "twenty-three million, nine hundred thousand, four hundred ninety-two".

Divisors: 1 2 4 7 11 14 22 28 44 73 77 146 154 292 308 511 803 1022 1063 1606 2044 2126 3212 4252 5621 7441 11242 11693 14882 22484 23386 29764 46772 77599 81851 155198 163702 310396 327404 543193 853589 1086386 1707178 2172772 3414356 5975123 11950246 23900492