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992290 = 251317449
BaseRepresentation
bin11110010010000100010
31212102011111
43302100202
5223223130
633133534
711301655
oct3622042
91772144
10992290
11618582
123ba2aa
13289870
141bb89c
1514902a
hexf2422

992290 has 32 divisors (see below), whose sum is σ = 2041200. Its totient is φ = 344064.

The previous prime is 992281. The next prime is 992309. The reversal of 992290 is 92299.

It can be written as a sum of positive squares in 8 ways, for example, as 434281 + 558009 = 659^2 + 747^2 .

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, 1986 + ... + 2434.

2992290 is an apocalyptic number.

992290 is an abundant number, since it is smaller than the sum of its proper divisors (1048910).

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

992290 is a wasteful number, since it uses less digits than its factorization.

992290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 992290 is about 996.1375407041. The cubic root of 992290 is about 99.7423366663.

The spelling of 992290 in words is "nine hundred ninety-two thousand, two hundred ninety".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 170 221 442 449 898 1105 2210 2245 4490 5837 7633 11674 15266 29185 38165 58370 76330 99229 198458 496145 992290