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7830073 = 31252583
BaseRepresentation
bin11101110111101000111001
3112201210211201
4131313220321
54001030243
6435454201
7123361126
oct35675071
915653751
107830073
114468939
122757361
131811ca4
14107b74d
15a4a04d
hex777a39

7830073 has 4 divisors (see below), whose sum is σ = 8082688. Its totient is φ = 7577460.

The previous prime is 7830041. The next prime is 7830077. The reversal of 7830073 is 3700387.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7830073 - 25 = 7830041 is a prime.

It is a super-2 number, since 2×78300732 = 122620086370658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7830077) 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, 126261 + ... + 126322.

It is an arithmetic number, because the mean of its divisors is an integer number (2020672).

Almost surely, 27830073 is an apocalyptic number.

It is an amenable number.

7830073 is a deficient number, since it is larger than the sum of its proper divisors (252615).

7830073 is a wasteful number, since it uses less digits than its factorization.

7830073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252614.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 7830073 is about 2798.2267599321. The cubic root of 7830073 is about 198.5737955458.

The spelling of 7830073 in words is "seven million, eight hundred thirty thousand, seventy-three".

Divisors: 1 31 252583 7830073