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9420079 = 13171909
BaseRepresentation
bin100011111011…
…110100101111
3122201120220211
4203323310233
54402420304
6533523251
7143032534
oct43736457
918646824
109420079
115354499
1231a3527
131c4a916
141372d8b
15c61204
hex8fbd2f

9420079 has 4 divisors (see below), whose sum is σ = 9492120. Its totient is φ = 9348040.

The previous prime is 9420077. The next prime is 9420083. The reversal of 9420079 is 9700249.

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

It is a cyclic number.

It is not a de Polignac number, because 9420079 - 21 = 9420077 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9420079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9420077) 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, 35824 + ... + 36085.

It is an arithmetic number, because the mean of its divisors is an integer number (2373030).

Almost surely, 29420079 is an apocalyptic number.

9420079 is a deficient number, since it is larger than the sum of its proper divisors (72041).

9420079 is a wasteful number, since it uses less digits than its factorization.

9420079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72040.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 9420079 is about 3069.2147204130. The cubic root of 9420079 is about 211.1955914173.

The spelling of 9420079 in words is "nine million, four hundred twenty thousand, seventy-nine".

Divisors: 1 131 71909 9420079