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8315042 = 220392
BaseRepresentation
bin11111101110000010100010
3120122110002112
4133232002202
54112040132
6454115322
7130451051
oct37560242
916573075
108315042
11476a23a
12294bb42
131951958
141166398
15ae3ab2
hex7ee0a2

8315042 has 6 divisors (see below), whose sum is σ = 12478683. Its totient is φ = 4155482.

The previous prime is 8315009. The next prime is 8315053. The reversal of 8315042 is 2405138.

It can be written as a sum of positive squares in only one way, i.e., 4157521 + 4157521 = 2039^2 + 2039^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=2039.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8314999 and 8315017.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3059 + ... + 5097.

Almost surely, 28315042 is an apocalyptic number.

8315042 is a deficient number, since it is larger than the sum of its proper divisors (4163641).

8315042 is an frugal number, since it uses more digits than its factorization.

8315042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4080 (or 2041 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 8315042 is about 2883.5814536787. The cubic root of 8315042 is about 202.5916224110.

The spelling of 8315042 in words is "eight million, three hundred fifteen thousand, forty-two".

Divisors: 1 2 2039 4078 4157521 8315042