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3144761860 = 225157238093
BaseRepresentation
bin1011101101110001…
…0100001000000100
322010011102110021111
42323130110020010
522420024334420
61240015054404
7140634014632
oct27334241004
98104373244
103144761860
111374155149
12739211404
133b169b146
1421b92a352
1513613b45a
hexbb714204

3144761860 has 12 divisors (see below), whose sum is σ = 6603999948. Its totient is φ = 1257904736.

The previous prime is 3144761857. The next prime is 3144761903. The reversal of 3144761860 is 681674413.

It can be written as a sum of positive squares in 2 ways, for example, as 2206932484 + 937829376 = 46978^2 + 30624^2 .

It is a super-2 number, since 2×31447618602 = 19779054312221319200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78619027 + ... + 78619066.

It is an arithmetic number, because the mean of its divisors is an integer number (550333329).

Almost surely, 23144761860 is an apocalyptic number.

It is an amenable number.

3144761860 is an abundant number, since it is smaller than the sum of its proper divisors (3459238088).

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

3144761860 is a wasteful number, since it uses less digits than its factorization.

3144761860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157238102 (or 157238100 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 3144761860 is about 56078.1763255547. The cubic root of 3144761860 is about 1465.0842104676.

The spelling of 3144761860 in words is "three billion, one hundred forty-four million, seven hundred sixty-one thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 157238093 314476186 628952372 786190465 1572380930 3144761860