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5104945 = 51020989
BaseRepresentation
bin10011011110010100110001
3100121100200001
4103132110301
52301324240
6301230001
761251136
oct23362461
910540601
105104945
11297746a
121862301
1310997a1
1496c58d
156ac89a
hex4de531

5104945 has 4 divisors (see below), whose sum is σ = 6125940. Its totient is φ = 4083952.

The previous prime is 5104943. The next prime is 5104949. The reversal of 5104945 is 5494015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5494015 = 51098803.

It can be written as a sum of positive squares in 2 ways, for example, as 2745649 + 2359296 = 1657^2 + 1536^2 .

It is a cyclic number.

It is not a de Polignac number, because 5104945 - 21 = 5104943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5104943) 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, 510490 + ... + 510499.

It is an arithmetic number, because the mean of its divisors is an integer number (1531485).

Almost surely, 25104945 is an apocalyptic number.

It is an amenable number.

5104945 is a deficient number, since it is larger than the sum of its proper divisors (1020995).

5104945 is a wasteful number, since it uses less digits than its factorization.

5104945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020994.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 5104945 is about 2259.4125342664. The cubic root of 5104945 is about 172.1856769877.

The spelling of 5104945 in words is "five million, one hundred four thousand, nine hundred forty-five".

Divisors: 1 5 1020989 5104945