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8250140545 = 517293346913
BaseRepresentation
bin1111010111011111…
…10010011110000001
3210021222002120012221
413223233302132001
5113344013444140
63442353051041
7411306015613
oct75357623601
923258076187
108250140545
113553a97779
121722b56a81
13a1630478a
145839bcdb3
1533445b14a
hex1ebbf2781

8250140545 has 16 divisors (see below), whose sum is σ = 10844001360. Its totient is φ = 5997666304.

The previous prime is 8250140539. The next prime is 8250140597. The reversal of 8250140545 is 5450410528.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1507924224 + 6742216321 = 38832^2 + 82111^2 .

It is a cyclic number.

It is not a de Polignac number, because 8250140545 - 29 = 8250140033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8250140545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1670992 + ... + 1675921.

It is an arithmetic number, because the mean of its divisors is an integer number (677750085).

Almost surely, 28250140545 is an apocalyptic number.

8250140545 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8250140545 is a deficient number, since it is larger than the sum of its proper divisors (2593860815).

8250140545 is a wasteful number, since it uses less digits than its factorization.

8250140545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3346964.

The product of its (nonzero) digits is 32000, while the sum is 34.

The square root of 8250140545 is about 90830.2842943916. The cubic root of 8250140545 is about 2020.6314845102.

The spelling of 8250140545 in words is "eight billion, two hundred fifty million, one hundred forty thousand, five hundred forty-five".

Divisors: 1 5 17 29 85 145 493 2465 3346913 16734565 56897521 97060477 284487605 485302385 1650028109 8250140545