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5128481 = 43119267
BaseRepresentation
bin10011100100000100100001
3100122112221202
4103210010201
52303102411
6301530545
761406561
oct23440441
910575852
105128481
112993116
121873a55
1310a7407
14976da1
156b483b
hex4e4121

5128481 has 4 divisors (see below), whose sum is σ = 5247792. Its totient is φ = 5009172.

The previous prime is 5128463. The next prime is 5128489. The reversal of 5128481 is 1848215.

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 5128481 - 214 = 5112097 is a prime.

It is a super-2 number, since 2×51284812 = 52602634734722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5128489) 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, 59591 + ... + 59676.

It is an arithmetic number, because the mean of its divisors is an integer number (1311948).

Almost surely, 25128481 is an apocalyptic number.

It is an amenable number.

5128481 is a deficient number, since it is larger than the sum of its proper divisors (119311).

5128481 is a wasteful number, since it uses less digits than its factorization.

5128481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119310.

The product of its digits is 2560, while the sum is 29.

The square root of 5128481 is about 2264.6149783131. The cubic root of 5128481 is about 172.4498881252.

The spelling of 5128481 in words is "five million, one hundred twenty-eight thousand, four hundred eighty-one".

Divisors: 1 43 119267 5128481