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6972836 = 2213134093
BaseRepresentation
bin11010100110010110100100
3111010020221012
4122212112210
53241112321
6405241352
7113160653
oct32462644
914106835
106972836
113a32882
122403258
1315a1a50
14cd719a
1592b05b
hex6a65a4

6972836 has 12 divisors (see below), whose sum is σ = 13141212. Its totient is φ = 3218208.

The previous prime is 6972827. The next prime is 6972851. The reversal of 6972836 is 6382796.

It can be written as a sum of positive squares in 2 ways, for example, as 3385600 + 3587236 = 1840^2 + 1894^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6972793 and 6972802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66995 + ... + 67098.

It is an arithmetic number, because the mean of its divisors is an integer number (1095101).

Almost surely, 26972836 is an apocalyptic number.

It is an amenable number.

6972836 is a deficient number, since it is larger than the sum of its proper divisors (6168376).

6972836 is a wasteful number, since it uses less digits than its factorization.

6972836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134110 (or 134108 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The square root of 6972836 is about 2640.6128076642. The cubic root of 6972836 is about 191.0453553099.

The spelling of 6972836 in words is "six million, nine hundred seventy-two thousand, eight hundred thirty-six".

Divisors: 1 2 4 13 26 52 134093 268186 536372 1743209 3486418 6972836