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6989924 = 2217102793
BaseRepresentation
bin11010101010100001100100
3111011010101002
4122222201210
53242134144
6405452432
7113261534
oct32524144
914133332
106989924
113a446a7
122411118
1315a9766
14cdd4c4
1593114e
hex6aa864

6989924 has 12 divisors (see below), whose sum is σ = 12952044. Its totient is φ = 3289344.

The previous prime is 6989923. The next prime is 6989933. The reversal of 6989924 is 4299896.

It can be written as a sum of positive squares in 2 ways, for example, as 5953600 + 1036324 = 2440^2 + 1018^2 .

It is not an unprimeable number, because it can be changed into a prime (6989921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51329 + ... + 51464.

It is an arithmetic number, because the mean of its divisors is an integer number (1079337).

Almost surely, 26989924 is an apocalyptic number.

It is an amenable number.

6989924 is a deficient number, since it is larger than the sum of its proper divisors (5962120).

6989924 is a wasteful number, since it uses less digits than its factorization.

6989924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102814 (or 102812 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The square root of 6989924 is about 2643.8464403214. The cubic root of 6989924 is about 191.2012899430.

The spelling of 6989924 in words is "six million, nine hundred eighty-nine thousand, nine hundred twenty-four".

Divisors: 1 2 4 17 34 68 102793 205586 411172 1747481 3494962 6989924