Search a number
-
+
18925152 = 253197137
BaseRepresentation
bin100100000110…
…0011001100000
31022121111102120
41020030121200
514321101102
61513344240
7316601241
oct110143140
938544376
1018925152
11a756824
126408080
133bc811c
142728cc8
1519dc6bc
hex120c660

18925152 has 24 divisors (see below), whose sum is σ = 49678776. Its totient is φ = 6308352.

The previous prime is 18925111. The next prime is 18925201. The reversal of 18925152 is 25152981.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×189251522 = 716322756446208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98473 + ... + 98664.

It is an arithmetic number, because the mean of its divisors is an integer number (2069949).

Almost surely, 218925152 is an apocalyptic number.

18925152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18925152 is an abundant number, since it is smaller than the sum of its proper divisors (30753624).

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

18925152 is a wasteful number, since it uses less digits than its factorization.

18925152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197150 (or 197142 counting only the distinct ones).

The product of its digits is 7200, while the sum is 33.

The square root of 18925152 is about 4350.3048169065. The cubic root of 18925152 is about 266.4893098460.

The spelling of 18925152 in words is "eighteen million, nine hundred twenty-five thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 197137 394274 591411 788548 1182822 1577096 2365644 3154192 4731288 6308384 9462576 18925152