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2690087 = 31107811
BaseRepresentation
bin1010010000110000100111
312001200002212
422100300213
51142040322
6133354035
731602551
oct12206047
95050085
102690087
111578114
12a9891b
1373258a
145004d1
153820e2
hex290c27

2690087 has 8 divisors (see below), whose sum is σ = 2806272. Its totient is φ = 2575800.

The previous prime is 2690081. The next prime is 2690089. The reversal of 2690087 is 7800962.

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

It is a cyclic number.

It is not a de Polignac number, because 2690087 - 24 = 2690071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2690081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2912 + ... + 3722.

It is an arithmetic number, because the mean of its divisors is an integer number (350784).

22690087 is an apocalyptic number.

2690087 is a deficient number, since it is larger than the sum of its proper divisors (116185).

2690087 is a wasteful number, since it uses less digits than its factorization.

2690087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 2690087 is about 1640.1484688893. The cubic root of 2690087 is about 139.0770409489.

The spelling of 2690087 in words is "two million, six hundred ninety thousand, eighty-seven".

Divisors: 1 31 107 811 3317 25141 86777 2690087