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8042485 = 511315389
BaseRepresentation
bin11110101011011111110101
3120010121012211
4132223133311
54024324420
6444213421
7125234323
oct36533765
916117184
108042485
1145a3490
12283a271
131887889
1410d4d13
15a8ce5a
hex7ab7f5

8042485 has 32 divisors (see below), whose sum is σ = 11197440. Its totient is φ = 5491200.

The previous prime is 8042477. The next prime is 8042509. The reversal of 8042485 is 5842408.

It is not a de Polignac number, because 8042485 - 23 = 8042477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90321 + ... + 90409.

It is an arithmetic number, because the mean of its divisors is an integer number (349920).

Almost surely, 28042485 is an apocalyptic number.

It is an amenable number.

8042485 is a deficient number, since it is larger than the sum of its proper divisors (3154955).

8042485 is a wasteful number, since it uses less digits than its factorization.

8042485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189.

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 8042485 is about 2835.9275378613. The cubic root of 8042485 is about 200.3534167817.

The spelling of 8042485 in words is "eight million, forty-two thousand, four hundred eighty-five".

Divisors: 1 5 11 31 53 55 89 155 265 341 445 583 979 1643 1705 2759 2915 4717 4895 8215 13795 18073 23585 30349 51887 90365 146227 151745 259435 731135 1608497 8042485