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916802890 = 2591680289
BaseRepresentation
bin110110101001010…
…100110101001010
32100220010102010121
4312221110311022
53334200143030
6230550133454
731501460503
oct6651246512
92326112117
10916802890
11430569643
1221705128a
13117c2a823
1489a91baa
155574a47a
hex36a54d4a

916802890 has 8 divisors (see below), whose sum is σ = 1650245220. Its totient is φ = 366721152.

The previous prime is 916802881. The next prime is 916802891. The reversal of 916802890 is 98208619.

It is a happy number.

916802890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 914639049 + 2163841 = 30243^2 + 1471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×9168028902 = 1681055078224704200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (916802891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45840135 + ... + 45840154.

Almost surely, 2916802890 is an apocalyptic number.

916802890 is a deficient number, since it is larger than the sum of its proper divisors (733442330).

916802890 is a wasteful number, since it uses less digits than its factorization.

916802890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91680296.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 916802890 is about 30278.7531117118. The cubic root of 916802890 is about 971.4608978265.

The spelling of 916802890 in words is "nine hundred sixteen million, eight hundred two thousand, eight hundred ninety".

Divisors: 1 2 5 10 91680289 183360578 458401445 916802890