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7468645 = 51493729
BaseRepresentation
bin11100011111011001100101
3112001110001111
4130133121211
53402444040
6424025021
7120324322
oct34373145
915043044
107468645
114241338
122602171
131716622
14dc5b49
159c7dea
hex71f665

7468645 has 4 divisors (see below), whose sum is σ = 8962380. Its totient is φ = 5974912.

The previous prime is 7468619. The next prime is 7468651. The reversal of 7468645 is 5468647.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5468647 = 35915233.

It can be written as a sum of positive squares in 2 ways, for example, as 5602689 + 1865956 = 2367^2 + 1366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7468645 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 7468598 and 7468607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746860 + ... + 746869.

It is an arithmetic number, because the mean of its divisors is an integer number (2240595).

Almost surely, 27468645 is an apocalyptic number.

It is an amenable number.

7468645 is a deficient number, since it is larger than the sum of its proper divisors (1493735).

7468645 is a wasteful number, since it uses less digits than its factorization.

7468645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493734.

The product of its digits is 161280, while the sum is 40.

The square root of 7468645 is about 2732.8821782141. The cubic root of 7468645 is about 195.4702217625.

The spelling of 7468645 in words is "seven million, four hundred sixty-eight thousand, six hundred forty-five".

Divisors: 1 5 1493729 7468645