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130285254 = 23116533023
BaseRepresentation
bin1111100001111…
…11111011000110
3100002011011202210
413300333323012
5231323112004
620532244250
73141256251
oct760777306
9302134683
10130285254
11675a7270
1237770686
1320cb8588
1413436098
15b688089
hex7c3fec6

130285254 has 32 divisors (see below), whose sum is σ = 284788224. Its totient is φ = 39406880.

The previous prime is 130285247. The next prime is 130285273. The reversal of 130285254 is 452582031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41587 + ... + 44609.

It is an arithmetic number, because the mean of its divisors is an integer number (8899632).

Almost surely, 2130285254 is an apocalyptic number.

130285254 is an abundant number, since it is smaller than the sum of its proper divisors (154502970).

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

130285254 is a wasteful number, since it uses less digits than its factorization.

130285254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 130285254 is about 11414.2566117991. The cubic root of 130285254 is about 506.9499540174.

The spelling of 130285254 in words is "one hundred thirty million, two hundred eighty-five thousand, two hundred fifty-four".

Divisors: 1 2 3 6 11 22 33 66 653 1306 1959 3023 3918 6046 7183 9069 14366 18138 21549 33253 43098 66506 99759 199518 1974019 3948038 5922057 11844114 21714209 43428418 65142627 130285254