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288399130 = 25125922907
BaseRepresentation
bin10001001100001…
…001111100011010
3202002200012020021
4101030021330122
51042312233010
644341221054
710101231535
oct2114117432
9662605207
10288399130
11138880598
128070178a
1347998696
142a433a1c
151a4bb8da
hex11309f1a

288399130 has 16 divisors (see below), whose sum is σ = 519553440. Its totient is φ = 115262992.

The previous prime is 288399121. The next prime is 288399179. The reversal of 288399130 is 31993882.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1137 + ... + 24043.

It is an arithmetic number, because the mean of its divisors is an integer number (32472090).

Almost surely, 2288399130 is an apocalyptic number.

288399130 is a deficient number, since it is larger than the sum of its proper divisors (231154310).

288399130 is a wasteful number, since it uses less digits than its factorization.

288399130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24173.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 288399130 is about 16982.3181574248. The cubic root of 288399130 is about 660.6903779919.

The spelling of 288399130 in words is "two hundred eighty-eight million, three hundred ninety-nine thousand, one hundred thirty".

Divisors: 1 2 5 10 1259 2518 6295 12590 22907 45814 114535 229070 28839913 57679826 144199565 288399130