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225504888 = 23371342291
BaseRepresentation
bin11010111000011…
…10111001111000
3120201022211112220
431130032321320
5430212124023
634213204040
75405521440
oct1534167170
9521284486
10225504888
11106323184
1263630620
133794725b
1421d41120
1514be63e3
hexd70ee78

225504888 has 32 divisors (see below), whose sum is σ = 644300160. Its totient is φ = 64429920.

The previous prime is 225504833. The next prime is 225504889. The reversal of 225504888 is 888405522.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225504889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670978 + ... + 671313.

It is an arithmetic number, because the mean of its divisors is an integer number (20134380).

Almost surely, 2225504888 is an apocalyptic number.

225504888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

225504888 is an abundant number, since it is smaller than the sum of its proper divisors (418795272).

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

225504888 is a wasteful number, since it uses less digits than its factorization.

225504888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342307 (or 1342303 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 42.

The square root of 225504888 is about 15016.8201693967. The cubic root of 225504888 is about 608.6747975919.

The spelling of 225504888 in words is "two hundred twenty-five million, five hundred four thousand, eight hundred eighty-eight".