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2990039 = 13230003
BaseRepresentation
bin1011011001111111010111
312121220120012
423121333113
51231140124
6144030435
734262213
oct13317727
95556505
102990039
111762508
12100241b
13808c70
1457b943
153e0e0e
hex2d9fd7

2990039 has 4 divisors (see below), whose sum is σ = 3220056. Its totient is φ = 2760024.

The previous prime is 2990033. The next prime is 2990041. The reversal of 2990039 is 9300992.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2990039 - 212 = 2985943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2989987 and 2990014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990033) 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, 114989 + ... + 115014.

It is an arithmetic number, because the mean of its divisors is an integer number (805014).

22990039 is an apocalyptic number.

2990039 is a deficient number, since it is larger than the sum of its proper divisors (230017).

2990039 is a wasteful number, since it uses less digits than its factorization.

2990039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230016.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 2990039 is about 1729.1729236835. The cubic root of 2990039 is about 144.0651550573.

The spelling of 2990039 in words is "two million, nine hundred ninety thousand, thirty-nine".

Divisors: 1 13 230003 2990039