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8064219601 = 89210092
BaseRepresentation
bin1111000001010101…
…00011100111010001
3202211000020210122001
413200222203213101
5113003420011401
63412112114001
7403560510214
oct74052434721
922730223561
108064219601
1134690505a9
121690835901
139b6939899
1456702377b
15322e83601
hex1e0aa39d1

8064219601 has 9 divisors (see below), whose sum is σ = 8163938001. Its totient is φ = 7965707904.

The previous prime is 8064219593. The next prime is 8064219607. The reversal of 8064219601 is 1069124608.

It is a happy number.

The square root of 8064219601 is 89801.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2061069201 + 6003150400 = 45399^2 + 77480^2 .

It is not a de Polignac number, because 8064219601 - 23 = 8064219593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8064219607) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7991785 + ... + 7992793.

Almost surely, 28064219601 is an apocalyptic number.

8064219601 is the 89801-st square number.

8064219601 is the 44901-st centered octagonal number.

It is an amenable number.

8064219601 is a deficient number, since it is larger than the sum of its proper divisors (99718400).

8064219601 is an frugal number, since it uses more digits than its factorization.

8064219601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The cubic root of 8064219601 is about 2005.3373769496.

Multiplying 8064219601 by its product of nonzero digits (20736), we get a square (167219657646336 = 129313442).

The spelling of 8064219601 in words is "eight billion, sixty-four million, two hundred nineteen thousand, six hundred one".

Divisors: 1 89 1009 7921 89801 1018081 7992289 90609209 8064219601