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8255200505 = 56132693377
BaseRepresentation
bin1111011000000110…
…00101110011111001
3210022022121122011212
413230003011303321
5113401312404010
63443053332505
7411400021646
oct75403056371
923268548155
108255200505
113556933362
121724797135
13a17386936
14584538dcd
15334b0a505
hex1ec0c5cf9

8255200505 has 8 divisors (see below), whose sum is σ = 9922404552. Its totient is φ = 6593384448.

The previous prime is 8255200489. The next prime is 8255200507. The reversal of 8255200505 is 5050025528.

It can be written as a sum of positive squares in 4 ways, for example, as 716793529 + 7538406976 = 26773^2 + 86824^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8255200505 - 24 = 8255200489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8255200507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1343624 + ... + 1349753.

It is an arithmetic number, because the mean of its divisors is an integer number (1240300569).

Almost surely, 28255200505 is an apocalyptic number.

It is an amenable number.

8255200505 is a deficient number, since it is larger than the sum of its proper divisors (1667204047).

8255200505 is a wasteful number, since it uses less digits than its factorization.

8255200505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693995.

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 8255200505 is about 90858.1339506816. The cubic root of 8255200505 is about 2021.0444966639.

The spelling of 8255200505 in words is "eight billion, two hundred fifty-five million, two hundred thousand, five hundred five".

Divisors: 1 5 613 3065 2693377 13466885 1651040101 8255200505