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8133073 = 13625621
BaseRepresentation
bin11111000001100111010001
3120022012110221
4133001213101
54040224243
6450153041
7126062404
oct37014721
916265427
108133073
114655553
122882781
1318b9b90
141119d3b
15aa9bed
hex7c19d1

8133073 has 4 divisors (see below), whose sum is σ = 8758708. Its totient is φ = 7507440.

The previous prime is 8133049. The next prime is 8133101. The reversal of 8133073 is 3703318.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5253264 + 2879809 = 2292^2 + 1697^2 .

It is a cyclic number.

It is not a de Polignac number, because 8133073 - 29 = 8132561 is a prime.

It is a super-2 number, since 2×81330732 = 132293752846658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8133023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312798 + ... + 312823.

It is an arithmetic number, because the mean of its divisors is an integer number (2189677).

Almost surely, 28133073 is an apocalyptic number.

It is an amenable number.

8133073 is a deficient number, since it is larger than the sum of its proper divisors (625635).

8133073 is a wasteful number, since it uses less digits than its factorization.

8133073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625634.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 8133073 is about 2851.8543090418. The cubic root of 8133073 is about 201.1028491078.

The spelling of 8133073 in words is "eight million, one hundred thirty-three thousand, seventy-three".

Divisors: 1 13 625621 8133073