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2079494761 = 4973418157
BaseRepresentation
bin111101111110010…
…1001001001101001
312100220221021112111
41323330221021221
513224322313021
6542202442321
7102350261641
oct17374511151
95326837474
102079494761
11977903213
124a05033a1
13271a8b796
1415a26d521
15c28668e1
hex7bf29269

2079494761 has 4 divisors (see below), whose sum is σ = 2079917892. Its totient is φ = 2079071632.

The previous prime is 2079494759. The next prime is 2079494771. The reversal of 2079494761 is 1674949702.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1818510736 + 260984025 = 42644^2 + 16155^2 .

It is a cyclic number.

It is not a de Polignac number, because 2079494761 - 21 = 2079494759 is a prime.

It is a super-2 number, since 2×20794947612 = 8648596922052894242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2079494741) 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, 204106 + ... + 214051.

It is an arithmetic number, because the mean of its divisors is an integer number (519979473).

Almost surely, 22079494761 is an apocalyptic number.

It is an amenable number.

2079494761 is a deficient number, since it is larger than the sum of its proper divisors (423131).

2079494761 is an equidigital number, since it uses as much as digits as its factorization.

2079494761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423130.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 2079494761 is about 45601.4776186035. The cubic root of 2079494761 is about 1276.3974959508.

The spelling of 2079494761 in words is "two billion, seventy-nine million, four hundred ninety-four thousand, seven hundred sixty-one".

Divisors: 1 4973 418157 2079494761