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8081407412 = 2213277561053
BaseRepresentation
bin1111000011011000…
…00111110110110100
3202212012121000212122
413201230013312310
5113022320014122
63413524335112
7404156554361
oct74154076664
922765530778
108081407412
113477820001
121696544498
139ba376ca0
14569419468
1532472b142
hex1e1b07db4

8081407412 has 24 divisors (see below), whose sum is σ = 15285355176. Its totient is φ = 3716408448.

The previous prime is 8081407393. The next prime is 8081407469. The reversal of 8081407412 is 2147041808.

It can be written as a sum of positive squares in 4 ways, for example, as 951969316 + 7129438096 = 30854^2 + 84436^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266123 + ... + 294930.

It is an arithmetic number, because the mean of its divisors is an integer number (636889799).

Almost surely, 28081407412 is an apocalyptic number.

It is an amenable number.

8081407412 is a deficient number, since it is larger than the sum of its proper divisors (7203947764).

8081407412 is a wasteful number, since it uses less digits than its factorization.

8081407412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561347 (or 561345 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 8081407412 is about 89896.6485025999. The cubic root of 8081407412 is about 2006.7610692163.

The spelling of 8081407412 in words is "eight billion, eighty-one million, four hundred seven thousand, four hundred twelve".

Divisors: 1 2 4 13 26 52 277 554 1108 3601 7202 14404 561053 1122106 2244212 7293689 14587378 29174756 155411681 310823362 621646724 2020351853 4040703706 8081407412