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3180081012 = 223265006751
BaseRepresentation
bin1011110110001100…
…0010111101110100
322012121212212001020
42331203002331310
523003100043022
61243320101140
7141543146133
oct27543027564
98177785036
103180081012
111392088a29
127490047b0
133b8ab6254
142224c191a
151392b635c
hexbd8c2f74

3180081012 has 12 divisors (see below), whose sum is σ = 7420189056. Its totient is φ = 1060027000.

The previous prime is 3180081011. The next prime is 3180081083. The reversal of 3180081012 is 2101800813.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×31800810122 = 20225830485765888288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3180081011) 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, 132503364 + ... + 132503387.

It is an arithmetic number, because the mean of its divisors is an integer number (618349088).

Almost surely, 23180081012 is an apocalyptic number.

It is an amenable number.

3180081012 is an abundant number, since it is smaller than the sum of its proper divisors (4240108044).

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

3180081012 is a wasteful number, since it uses less digits than its factorization.

3180081012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265006758 (or 265006756 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 3180081012 is about 56392.2070147995. The cubic root of 3180081012 is about 1470.5486424464.

Adding to 3180081012 its reverse (2101800813), we get a palindrome (5281881825).

The spelling of 3180081012 in words is "three billion, one hundred eighty million, eighty-one thousand, twelve".

Divisors: 1 2 3 4 6 12 265006751 530013502 795020253 1060027004 1590040506 3180081012