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2990164 = 221743973
BaseRepresentation
bin1011011010000001010100
312121220201211
423122001110
51231141124
6144031204
734262452
oct13320124
95556654
102990164
111762611
121002504
13809038
1457b9d2
153e0e94
hex2da054

2990164 has 12 divisors (see below), whose sum is σ = 5540724. Its totient is φ = 1407104.

The previous prime is 2990137. The next prime is 2990189. The reversal of 2990164 is 4610992.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1904400 + 1085764 = 1380^2 + 1042^2 .

It is a congruent number.

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, 21919 + ... + 22054.

It is an arithmetic number, because the mean of its divisors is an integer number (461727).

22990164 is an apocalyptic number.

It is an amenable number.

2990164 is a deficient number, since it is larger than the sum of its proper divisors (2550560).

2990164 is a wasteful number, since it uses less digits than its factorization.

2990164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43994 (or 43992 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2990164 is about 1729.2090677532. The cubic root of 2990164 is about 144.0671626001.

The spelling of 2990164 in words is "two million, nine hundred ninety thousand, one hundred sixty-four".

Divisors: 1 2 4 17 34 68 43973 87946 175892 747541 1495082 2990164