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7630865 = 511212613
BaseRepresentation
bin11101000111000000010001
3112100200120122
4131013000101
53423141430
6431320025
7121601264
oct35070021
915320518
107630865
114342200
122680015
131772408
141028cdb
15a0aee5
hex747011

7630865 has 12 divisors (see below), whose sum is σ = 10065972. Its totient is φ = 5549280.

The previous prime is 7630849. The next prime is 7630891. The reversal of 7630865 is 5680367.

It is a happy number.

7630865 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2982529 + 4648336 = 1727^2 + 2156^2 .

It is not a de Polignac number, because 7630865 - 24 = 7630849 is a prime.

It is a super-3 number, since 3×76308653 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5702 + ... + 6911.

It is an arithmetic number, because the mean of its divisors is an integer number (838831).

Almost surely, 27630865 is an apocalyptic number.

It is an amenable number.

7630865 is a deficient number, since it is larger than the sum of its proper divisors (2435107).

7630865 is a wasteful number, since it uses less digits than its factorization.

7630865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12640 (or 12629 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 7630865 is about 2762.4020344620. The cubic root of 7630865 is about 196.8753108251.

The spelling of 7630865 in words is "seven million, six hundred thirty thousand, eight hundred sixty-five".

Divisors: 1 5 11 55 121 605 12613 63065 138743 693715 1526173 7630865