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2780000525 = 52432586047
BaseRepresentation
bin1010010110110011…
…0111000100001101
321011202001122210102
42211230313010031
521143140004100
61135505020445
7125614420541
oct24554670415
97152048712
102780000525
1111a72685a5
12657024725
13353c47133
141c52d9a21
151140d8cd5
hexa5b3710d

2780000525 has 12 divisors (see below), whose sum is σ = 3527369472. Its totient is φ = 2172278640.

The previous prime is 2780000507. The next prime is 2780000533. The reversal of 2780000525 is 5250000872.

2780000525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2780000525 - 226 = 2712891661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1291949 + ... + 1294098.

It is an arithmetic number, because the mean of its divisors is an integer number (293947456).

Almost surely, 22780000525 is an apocalyptic number.

2780000525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2780000525 is a deficient number, since it is larger than the sum of its proper divisors (747368947).

2780000525 is a wasteful number, since it uses less digits than its factorization.

2780000525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586100 (or 2586095 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 2780000525 is about 52725.7102844523. The cubic root of 2780000525 is about 1406.0959563938.

The spelling of 2780000525 in words is "two billion, seven hundred eighty million, five hundred twenty-five", and thus it is an aban number.

Divisors: 1 5 25 43 215 1075 2586047 12930235 64651175 111200021 556000105 2780000525