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2575278260 = 225235598431
BaseRepresentation
bin1001100101111111…
…1010000010110100
320122110211200122022
42121133322002310
520233232401020
61103313052312
7120550334612
oct23137720264
96573750568
102575278260
11110174a745
125ba557098
133206c85b9
141a60486b2
1510114a625
hex997fa0b4

2575278260 has 24 divisors (see below), whose sum is σ = 5643219456. Its totient is φ = 985323680.

The previous prime is 2575278253. The next prime is 2575278287. The reversal of 2575278260 is 628725752.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2798756 + ... + 2799675.

It is an arithmetic number, because the mean of its divisors is an integer number (235134144).

Almost surely, 22575278260 is an apocalyptic number.

2575278260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2575278260 is an abundant number, since it is smaller than the sum of its proper divisors (3067941196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2575278260 is a wasteful number, since it uses less digits than its factorization.

2575278260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5598463 (or 5598461 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 44.

The square root of 2575278260 is about 50747.1995286439. The cubic root of 2575278260 is about 1370.6967631633.

The spelling of 2575278260 in words is "two billion, five hundred seventy-five million, two hundred seventy-eight thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 5598431 11196862 22393724 27992155 55984310 111968620 128763913 257527826 515055652 643819565 1287639130 2575278260