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2079431 = 10871913
BaseRepresentation
bin111111011101011000111
310220122102222
413323223013
51013020211
6112322555
723450324
oct7735307
93818388
102079431
1111a0342
1284345b
1357a643
143c1b4b
152b11db
hex1fbac7

2079431 has 4 divisors (see below), whose sum is σ = 2082432. Its totient is φ = 2076432.

The previous prime is 2079419. The next prime is 2079433. The reversal of 2079431 is 1349702.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1349702 = 2674851.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2079431 is a prime.

It is a super-2 number, since 2×20794312 = 8648066567522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2079431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2079433) 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, 131 + ... + 2043.

It is an arithmetic number, because the mean of its divisors is an integer number (520608).

22079431 is an apocalyptic number.

2079431 is a deficient number, since it is larger than the sum of its proper divisors (3001).

2079431 is a wasteful number, since it uses less digits than its factorization.

2079431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2079431 is about 1442.0232314356. The cubic root of 2079431 is about 127.6384450280.

The spelling of 2079431 in words is "two million, seventy-nine thousand, four hundred thirty-one".

Divisors: 1 1087 1913 2079431