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5083781 = 27718353
BaseRepresentation
bin10011011001001010000101
3100120021122012
4103121022011
52300140111
6300544005
761132343
oct23311205
910507565
105083781
11296257a
121852005
13108cc71
14964993
156a648b
hex4d9285

5083781 has 4 divisors (see below), whose sum is σ = 5102412. Its totient is φ = 5065152.

The previous prime is 5083753. The next prime is 5083823. The reversal of 5083781 is 1873805.

5083781 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1873805 = 5374761.

It can be written as a sum of positive squares in 2 ways, for example, as 422500 + 4661281 = 650^2 + 2159^2 .

It is a cyclic number.

It is not a de Polignac number, because 5083781 - 218 = 4821637 is a prime.

It is a super-2 number, since 2×50837812 = 51689658511922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5083711) 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, 8900 + ... + 9453.

It is an arithmetic number, because the mean of its divisors is an integer number (1275603).

Almost surely, 25083781 is an apocalyptic number.

It is an amenable number.

5083781 is a deficient number, since it is larger than the sum of its proper divisors (18631).

5083781 is a wasteful number, since it uses less digits than its factorization.

5083781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18630.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 5083781 is about 2254.7241516425. The cubic root of 5083781 is about 171.9473991848.

The spelling of 5083781 in words is "five million, eighty-three thousand, seven hundred eighty-one".

Divisors: 1 277 18353 5083781