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8290085 = 52957173
BaseRepresentation
bin11111100111111100100101
3120121011212012
4133213330211
54110240320
6453404005
7130315226
oct37477445
916534765
108290085
114752511
122939605
13194349b
14115b24d
15adb4c5
hex7e7f25

8290085 has 8 divisors (see below), whose sum is σ = 10291320. Its totient is φ = 6403264.

The previous prime is 8290081. The next prime is 8290103. The reversal of 8290085 is 5800928.

It can be written as a sum of positive squares in 4 ways, for example, as 2879809 + 5410276 = 1697^2 + 2326^2 .

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 8290085 - 22 = 8290081 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8290081) 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, 28442 + ... + 28731.

It is an arithmetic number, because the mean of its divisors is an integer number (1286415).

Almost surely, 28290085 is an apocalyptic number.

It is an amenable number.

8290085 is a deficient number, since it is larger than the sum of its proper divisors (2001235).

8290085 is a wasteful number, since it uses less digits than its factorization.

8290085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57207.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 8290085 is about 2879.2507705999. The cubic root of 8290085 is about 202.3887312306.

The spelling of 8290085 in words is "eight million, two hundred ninety thousand, eighty-five".

Divisors: 1 5 29 145 57173 285865 1658017 8290085