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255172 = 2263793
BaseRepresentation
bin111110010011000100
3110222000211
4332103010
531131142
65245204
72111641
oct762304
9428024
10255172
11164795
12103804
138c1b8
1468dc8
1550917
hex3e4c4

255172 has 6 divisors (see below), whose sum is σ = 446558. Its totient is φ = 127584.

The previous prime is 255149. The next prime is 255173. The reversal of 255172 is 271552.

255172 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 254016 + 1156 = 504^2 + 34^2 .

It is a super-2 number, since 2×2551722 = 130225499168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31893 + ... + 31900.

2255172 is an apocalyptic number.

It is an amenable number.

255172 is a deficient number, since it is larger than the sum of its proper divisors (191386).

255172 is a wasteful number, since it uses less digits than its factorization.

255172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63797 (or 63795 counting only the distinct ones).

The product of its digits is 700, while the sum is 22.

The square root of 255172 is about 505.1455235870. The cubic root of 255172 is about 63.4275114706.

The spelling of 255172 in words is "two hundred fifty-five thousand, one hundred seventy-two".

Divisors: 1 2 4 63793 127586 255172