Search a number
-
+
4839981 = 31799013
BaseRepresentation
bin10010011101101000101101
3100002220012120
4102131220231
52214334411
6251423153
756065506
oct22355055
910086176
104839981
112806393
121754ab9
131005cc3
148ddbad
15659106
hex49da2d

4839981 has 8 divisors (see below), whose sum is σ = 6490080. Its totient is φ = 3208272.

The previous prime is 4839977. The next prime is 4839997. The reversal of 4839981 is 1899384.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4839981 - 22 = 4839977 is a prime.

It is a super-2 number, since 2×48399812 = 46850832160722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4839911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3970 + ... + 5043.

It is an arithmetic number, because the mean of its divisors is an integer number (811260).

Almost surely, 24839981 is an apocalyptic number.

It is an amenable number.

4839981 is a deficient number, since it is larger than the sum of its proper divisors (1650099).

4839981 is a wasteful number, since it uses less digits than its factorization.

4839981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9195.

The product of its digits is 62208, while the sum is 42.

The square root of 4839981 is about 2199.9956818139. The cubic root of 4839981 is about 169.1535898175.

The spelling of 4839981 in words is "four million, eight hundred thirty-nine thousand, nine hundred eighty-one".

Divisors: 1 3 179 537 9013 27039 1613327 4839981