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8141809590 = 232590464551
BaseRepresentation
bin1111001010100101…
…00010011110110110
3210000102020210002100
413211102202132312
5113133300401330
63423523122530
7405522145125
oct74522423666
923012223070
108141809590
1134a8926062
1216b2813446
139c9a35015
1457345dabc
15329bad060
hex1e54a27b6

8141809590 has 24 divisors (see below), whose sum is σ = 21168705168. Its totient is φ = 2171149200.

The previous prime is 8141809547. The next prime is 8141809591. The reversal of 8141809590 is 959081418.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8141809591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45232186 + ... + 45232365.

It is an arithmetic number, because the mean of its divisors is an integer number (882029382).

Almost surely, 28141809590 is an apocalyptic number.

8141809590 is an abundant number, since it is smaller than the sum of its proper divisors (13026895578).

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

8141809590 is a wasteful number, since it uses less digits than its factorization.

8141809590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90464564 (or 90464561 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 8141809590 is about 90231.9765382539. The cubic root of 8141809590 is about 2011.7483192031.

The spelling of 8141809590 in words is "eight billion, one hundred forty-one million, eight hundred nine thousand, five hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 90464551 180929102 271393653 452322755 542787306 814180959 904645510 1356968265 1628361918 2713936530 4070904795 8141809590