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7942288 = 242917117
BaseRepresentation
bin11110010011000010010000
3112221111202211
4132103002100
54013123123
6442121504
7124336234
oct36230220
915844684
107942288
114535182
1227b0294
1318510a3
1410aa5c4
15a6d40d
hex793090

7942288 has 20 divisors (see below), whose sum is σ = 15919740. Its totient is φ = 3833984.

The previous prime is 7942279. The next prime is 7942303. The reversal of 7942288 is 8822497.

It can be written as a sum of positive squares in 2 ways, for example, as 1327104 + 6615184 = 1152^2 + 2572^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7942288.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8095 + ... + 9022.

It is an arithmetic number, because the mean of its divisors is an integer number (795987).

Almost surely, 27942288 is an apocalyptic number.

It is an amenable number.

7942288 is an abundant number, since it is smaller than the sum of its proper divisors (7977452).

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

7942288 is a wasteful number, since it uses less digits than its factorization.

7942288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17154 (or 17148 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 7942288 is about 2818.2065218859. The cubic root of 7942288 is about 199.5179055250.

The spelling of 7942288 in words is "seven million, nine hundred forty-two thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 16 29 58 116 232 464 17117 34234 68468 136936 273872 496393 992786 1985572 3971144 7942288