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201255102 = 23211180839
BaseRepresentation
bin10111111111011…
…10100010111110
3112000200211002200
423333232202332
5403010130402
631545332330
74662432366
oct1377564276
9460624080
10201255102
11a366aa34
12574970a6
1332906679
141ca2b9a6
1512a0621c
hexbfee8be

201255102 has 12 divisors (see below), whose sum is σ = 436052760. Its totient is φ = 67085028.

The previous prime is 201255097. The next prime is 201255113. The reversal of 201255102 is 201552102.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11180839 = 201255102 / (2 + 0 + 1 + 2 + 5 + 5 + 1 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5590402 + ... + 5590437.

It is an arithmetic number, because the mean of its divisors is an integer number (36337730).

Almost surely, 2201255102 is an apocalyptic number.

201255102 is an abundant number, since it is smaller than the sum of its proper divisors (234797658).

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

201255102 is a wasteful number, since it uses less digits than its factorization.

201255102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11180847 (or 11180844 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 201255102 is about 14186.4407798433. The cubic root of 201255102 is about 586.0243110587.

The spelling of 201255102 in words is "two hundred one million, two hundred fifty-five thousand, one hundred two".

Divisors: 1 2 3 6 9 18 11180839 22361678 33542517 67085034 100627551 201255102