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2890807 = 29831201
BaseRepresentation
bin1011000001110000110111
312102212102221
423001300313
51220001212
6141543211
733400003
oct13016067
95385387
102890807
1116a49a7
12b74b07
137a2a4a
14553703
153c1807
hex2c1c37

2890807 has 8 divisors (see below), whose sum is σ = 3029040. Its totient is φ = 2755200.

The previous prime is 2890763. The next prime is 2890813. The reversal of 2890807 is 7080982.

It is a happy number.

2890807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2890807 is a prime.

It is a super-2 number, since 2×28908072 = 16713530222498, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2890897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1807 + ... + 3007.

It is an arithmetic number, because the mean of its divisors is an integer number (378630).

22890807 is an apocalyptic number.

2890807 is a deficient number, since it is larger than the sum of its proper divisors (138233).

2890807 is a wasteful number, since it uses less digits than its factorization.

2890807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 2890807 is about 1700.2373363740. The cubic root of 2890807 is about 142.4534699833.

The spelling of 2890807 in words is "two million, eight hundred ninety thousand, eight hundred seven".

Divisors: 1 29 83 1201 2407 34829 99683 2890807