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7913097 = 323372609
BaseRepresentation
bin11110001011111010001001
3112220000201200
4132023322021
54011204342
6441334413
7124155153
oct36137211
915800650
107913097
114515255
122797409
131840a0a
14109dad3
15a6494c
hex78be89

7913097 has 12 divisors (see below), whose sum is σ = 11468340. Its totient is φ = 5257728.

The previous prime is 7913093. The next prime is 7913099. The reversal of 7913097 is 7903197.

It can be written as a sum of positive squares in 2 ways, for example, as 2944656 + 4968441 = 1716^2 + 2229^2 .

It is not a de Polignac number, because 7913097 - 22 = 7913093 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

7913097 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7913093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1729 + ... + 4337.

It is an arithmetic number, because the mean of its divisors is an integer number (955695).

Almost surely, 27913097 is an apocalyptic number.

It is an amenable number.

7913097 is a deficient number, since it is larger than the sum of its proper divisors (3555243).

7913097 is a wasteful number, since it uses less digits than its factorization.

7913097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952 (or 2949 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 7913097 is about 2813.0227514188. The cubic root of 7913097 is about 199.2731701248.

The spelling of 7913097 in words is "seven million, nine hundred thirteen thousand, ninety-seven".

Divisors: 1 3 9 337 1011 2609 3033 7827 23481 879233 2637699 7913097