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2050870825 = 5282034833
BaseRepresentation
bin111101000111101…
…1100111000101001
312021221002000212201
41322033130320221
513200010331300
6535301140201
7101552054143
oct17217347051
95257060781
102050870825
11962732673
124929ba661
13268b78c43
1415653bc93
15c00b066a
hex7a3dce29

2050870825 has 6 divisors (see below), whose sum is σ = 2543079854. Its totient is φ = 1640696640.

The previous prime is 2050870823. The next prime is 2050870859. The reversal of 2050870825 is 5280780502.

It can be written as a sum of positive squares in 3 ways, for example, as 645820569 + 1405050256 = 25413^2 + 37484^2 .

It is not a de Polignac number, because 2050870825 - 21 = 2050870823 is a prime.

It is a super-2 number, since 2×20508708252 = 8412142281672361250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2050870823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41017392 + ... + 41017441.

Almost surely, 22050870825 is an apocalyptic number.

2050870825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2050870825 is a deficient number, since it is larger than the sum of its proper divisors (492209029).

2050870825 is an equidigital number, since it uses as much as digits as its factorization.

2050870825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82034843 (or 82034838 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 2050870825 is about 45286.5413230024. The cubic root of 2050870825 is about 1270.5139435176.

The spelling of 2050870825 in words is "two billion, fifty million, eight hundred seventy thousand, eight hundred twenty-five".

Divisors: 1 5 25 82034833 410174165 2050870825