Search a number
-
+
23019152 = 241328513
BaseRepresentation
bin101011111001…
…1111010010000
31121022111100012
41113303322100
521343103102
62141214052
7366442142
oct127637220
947274305
1023019152
1111aa26a2
127861328
1349cc700
1430b2c92
15204a752
hex15f3e90

23019152 has 30 divisors (see below), whose sum is σ = 48299922. Its totient is φ = 10622976.

The previous prime is 23019133. The next prime is 23019169. The reversal of 23019152 is 25191032.

It can be written as a sum of positive squares in 3 ways, for example, as 2262016 + 20757136 = 1504^2 + 4556^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1553 + ... + 6960.

Almost surely, 223019152 is an apocalyptic number.

It is an amenable number.

23019152 is an abundant number, since it is smaller than the sum of its proper divisors (25280770).

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

23019152 is a wasteful number, since it uses less digits than its factorization.

23019152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8547 (or 8528 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 23019152 is about 4797.8278418468. The cubic root of 23019152 is about 284.4656119411.

The spelling of 23019152 in words is "twenty-three million, nineteen thousand, one hundred fifty-two".

Divisors: 1 2 4 8 13 16 26 52 104 169 208 338 676 1352 2704 8513 17026 34052 68104 110669 136208 221338 442676 885352 1438697 1770704 2877394 5754788 11509576 23019152