Search a number
-
+
23825988 = 2234151487
BaseRepresentation
bin101101011100…
…0111001000100
31122211111010000
41122320321010
522044412423
62210401300
7406342344
oct132707104
948744100
1023825988
11124a38aa
127b90230
134c22a24
143242d24
152159843
hex16b8e44

23825988 has 60 divisors (see below), whose sum is σ = 62827072. Its totient is φ = 7873200.

The previous prime is 23825969. The next prime is 23826031. The reversal of 23825988 is 88952832.

It is a super-2 number, since 2×238259882 = 1135355408352288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48681 + ... + 49167.

Almost surely, 223825988 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 23825988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31413536).

23825988 is an abundant number, since it is smaller than the sum of its proper divisors (39001084).

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

23825988 is a wasteful number, since it uses less digits than its factorization.

23825988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 643 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 23825988 is about 4881.1871506837. The cubic root of 23825988 is about 287.7510870145.

The spelling of 23825988 in words is "twenty-three million, eight hundred twenty-five thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 151 162 302 324 453 487 604 906 974 1359 1461 1812 1948 2718 2922 4077 4383 5436 5844 8154 8766 12231 13149 16308 17532 24462 26298 39447 48924 52596 73537 78894 147074 157788 220611 294148 441222 661833 882444 1323666 1985499 2647332 3970998 5956497 7941996 11912994 23825988