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4992189 = 31664063
BaseRepresentation
bin10011000010110010111101
3100101121222220
4103002302331
52234222224
6254555553
760301326
oct23026275
910347886
104992189
1128aa784
121808bb9
13105a377
1493d44d
15689279
hex4c2cbd

4992189 has 4 divisors (see below), whose sum is σ = 6656256. Its totient is φ = 3328124.

The previous prime is 4992187. The next prime is 4992233. The reversal of 4992189 is 9812994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4992189 - 21 = 4992187 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 4992189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4992181) 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, 832029 + ... + 832034.

It is an arithmetic number, because the mean of its divisors is an integer number (1664064).

Almost surely, 24992189 is an apocalyptic number.

It is an amenable number.

4992189 is a deficient number, since it is larger than the sum of its proper divisors (1664067).

4992189 is a wasteful number, since it uses less digits than its factorization.

4992189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664066.

The product of its digits is 46656, while the sum is 42.

The square root of 4992189 is about 2234.3207021375. The cubic root of 4992189 is about 170.9085041117.

The spelling of 4992189 in words is "four million, nine hundred ninety-two thousand, one hundred eighty-nine".

Divisors: 1 3 1664063 4992189