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8025690 = 235267523
BaseRepresentation
bin11110100111011001011010
3120002202011210
4132213121122
54023310230
6444003550
7125134341
oct36473132
916082153
108025690
114591902
1228305b6
13188003a
1410ccb58
15a87eb0
hex7a765a

8025690 has 16 divisors (see below), whose sum is σ = 19261728. Its totient is φ = 2140176.

The previous prime is 8025679. The next prime is 8025691. The reversal of 8025690 is 965208.

It is a super-2 number, since 2×80256902 = 128823399952200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 267523 = 8025690 / (8 + 0 + 2 + 5 + 6 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (8025691) 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, 133732 + ... + 133791.

It is an arithmetic number, because the mean of its divisors is an integer number (1203858).

Almost surely, 28025690 is an apocalyptic number.

8025690 is an abundant number, since it is smaller than the sum of its proper divisors (11236038).

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

8025690 is a wasteful number, since it uses less digits than its factorization.

8025690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267533.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 8025690 is about 2832.9648780033. The cubic root of 8025690 is about 200.2138545829.

The spelling of 8025690 in words is "eight million, twenty-five thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 267523 535046 802569 1337615 1605138 2675230 4012845 8025690