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7961113 = 73310861
BaseRepresentation
bin11110010111101000011001
3112222110121001
4132113220121
54014223423
6442345001
7124445146
oct36275031
915873531
107961113
114548336
1227bb161
131859824
1410b33cd
15a73cad
hex797a19

7961113 has 4 divisors (see below), whose sum is σ = 7972708. Its totient is φ = 7949520.

The previous prime is 7961101. The next prime is 7961119. The reversal of 7961113 is 3111697.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3111697 = 17183041.

It can be written as a sum of positive squares in 2 ways, for example, as 5992704 + 1968409 = 2448^2 + 1403^2 .

It is a cyclic number.

It is not a de Polignac number, because 7961113 - 213 = 7952921 is a prime.

It is a Duffinian number.

7961113 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7961119) 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 3 ways as a sum of consecutive naturals, for example, 4698 + ... + 6163.

It is an arithmetic number, because the mean of its divisors is an integer number (1993177).

Almost surely, 27961113 is an apocalyptic number.

It is an amenable number.

7961113 is a deficient number, since it is larger than the sum of its proper divisors (11595).

7961113 is a wasteful number, since it uses less digits than its factorization.

7961113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11594.

The product of its digits is 1134, while the sum is 28.

The square root of 7961113 is about 2821.5444352340. The cubic root of 7961113 is about 199.6754151751.

The spelling of 7961113 in words is "seven million, nine hundred sixty-one thousand, one hundred thirteen".

Divisors: 1 733 10861 7961113