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672990 = 23522433
BaseRepresentation
bin10100100010011011110
31021012011120
42210103132
5133013430
622231410
75502033
oct2442336
91235146
10672990
1141a69a
12285566
131a7426
1413738a
15d4610
hexa44de

672990 has 16 divisors (see below), whose sum is σ = 1615248. Its totient is φ = 179456.

The previous prime is 672983. The next prime is 673019. The reversal of 672990 is 99276.

672990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11187 + ... + 11246.

It is an arithmetic number, because the mean of its divisors is an integer number (100953).

2672990 is an apocalyptic number.

672990 is an abundant number, since it is smaller than the sum of its proper divisors (942258).

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

672990 is a wasteful number, since it uses less digits than its factorization.

672990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22443.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 672990 is about 820.3596772148. The cubic root of 672990 is about 87.6333748269.

The spelling of 672990 in words is "six hundred seventy-two thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 22433 44866 67299 112165 134598 224330 336495 672990