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9130287 = 3231131171
BaseRepresentation
bin100010110101…
…000100101111
3122011212101210
4202311010233
54314132122
6523405503
7140414625
oct42650457
918155353
109130287
1151767a1
123083893
131b78a4a
1412d9515
15c0540c
hex8b512f

9130287 has 16 divisors (see below), whose sum is σ = 12826368. Its totient is φ = 5765760.

The previous prime is 9130283. The next prime is 9130301. The reversal of 9130287 is 7820319.

It is a happy number.

9130287 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9130287 - 22 = 9130283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9130283) 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, 7212 + ... + 8382.

It is an arithmetic number, because the mean of its divisors is an integer number (801648).

Almost surely, 29130287 is an apocalyptic number.

9130287 is a deficient number, since it is larger than the sum of its proper divisors (3696081).

9130287 is a wasteful number, since it uses less digits than its factorization.

9130287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 9130287 is about 3021.6364771428. The cubic root of 9130287 is about 209.0073103217.

The spelling of 9130287 in words is "nine million, one hundred thirty thousand, two hundred eighty-seven".

Divisors: 1 3 23 69 113 339 1171 2599 3513 7797 26933 80799 132323 396969 3043429 9130287