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252018 = 23313359
BaseRepresentation
bin111101100001110010
3110210201000
4331201302
531031033
65222430
72066514
oct754162
9423630
10252018
11162388
12101a16
138a930
1467bb4
154ea13
hex3d872

252018 has 32 divisors (see below), whose sum is σ = 604800. Its totient is φ = 77328.

The previous prime is 252017. The next prime is 252029. The reversal of 252018 is 810252.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (252013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523 + ... + 881.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2252018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302400).

252018 is an abundant number, since it is smaller than the sum of its proper divisors (352782).

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

252018 is a wasteful number, since it uses less digits than its factorization.

252018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 252018 is about 502.0139440294. The cubic root of 252018 is about 63.1650998359.

The spelling of 252018 in words is "two hundred fifty-two thousand, eighteen".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 78 117 234 351 359 702 718 1077 2154 3231 4667 6462 9334 9693 14001 19386 28002 42003 84006 126009 252018