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4938981 = 31998273
BaseRepresentation
bin10010110101110011100101
3100021221000020
4102311303211
52231021411
6253505353
756660235
oct22656345
910257006
104938981
112873803
1217a2259
13103c098
14927cc5
15678606
hex4b5ce5

4938981 has 8 divisors (see below), whose sum is σ = 6619200. Its totient is φ = 3275712.

The previous prime is 4938979. The next prime is 4939003. The reversal of 4938981 is 1898394.

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

It is not a de Polignac number, because 4938981 - 21 = 4938979 is a prime.

It is a super-2 number, since 2×49389812 = 48787066636722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4938931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3540 + ... + 4733.

It is an arithmetic number, because the mean of its divisors is an integer number (827400).

Almost surely, 24938981 is an apocalyptic number.

It is an amenable number.

4938981 is a deficient number, since it is larger than the sum of its proper divisors (1680219).

4938981 is a wasteful number, since it uses less digits than its factorization.

4938981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8475.

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

The square root of 4938981 is about 2222.3818303793. The cubic root of 4938981 is about 170.2991388278.

The spelling of 4938981 in words is "four million, nine hundred thirty-eight thousand, nine hundred eighty-one".

Divisors: 1 3 199 597 8273 24819 1646327 4938981