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8293904 = 242572017
BaseRepresentation
bin11111101000111000010000
3120121101002122
4133220320100
54110401104
6453433412
7130332323
oct37507020
916541078
108293904
114755373
12293b868
131945148
14115c7ba
15adc6be
hex7e8e10

8293904 has 20 divisors (see below), whose sum is σ = 16139964. Its totient is φ = 4128768.

The previous prime is 8293903. The next prime is 8293921. The reversal of 8293904 is 4093928.

It can be written as a sum of positive squares in 2 ways, for example, as 7728400 + 565504 = 2780^2 + 752^2 .

It is a super-2 number, since 2×82939042 = 137577687122432, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8293903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3104 + ... + 5120.

Almost surely, 28293904 is an apocalyptic number.

It is an amenable number.

8293904 is a deficient number, since it is larger than the sum of its proper divisors (7846060).

8293904 is a wasteful number, since it uses less digits than its factorization.

8293904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282 (or 2276 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 8293904 is about 2879.9138876015. The cubic root of 8293904 is about 202.4198046518.

The spelling of 8293904 in words is "eight million, two hundred ninety-three thousand, nine hundred four".

Divisors: 1 2 4 8 16 257 514 1028 2017 2056 4034 4112 8068 16136 32272 518369 1036738 2073476 4146952 8293904