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5128877 = 13394529
BaseRepresentation
bin10011100100001010101101
3100122120111102
4103210022231
52303111002
6301532445
761410665
oct23441255
910576442
105128877
112993446
121874125
1310a7650
149771a5
156b4a02
hex4e42ad

5128877 has 4 divisors (see below), whose sum is σ = 5523420. Its totient is φ = 4734336.

The previous prime is 5128873. The next prime is 5128889. The reversal of 5128877 is 7788215.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2920681 + 2208196 = 1709^2 + 1486^2 .

It is a cyclic number.

It is not a de Polignac number, because 5128877 - 22 = 5128873 is a prime.

It is a super-2 number, since 2×51288772 = 52610758562258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5128877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197252 + ... + 197277.

It is an arithmetic number, because the mean of its divisors is an integer number (1380855).

Almost surely, 25128877 is an apocalyptic number.

It is an amenable number.

5128877 is a deficient number, since it is larger than the sum of its proper divisors (394543).

5128877 is a wasteful number, since it uses less digits than its factorization.

5128877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394542.

The product of its digits is 31360, while the sum is 38.

The square root of 5128877 is about 2264.7024087063. The cubic root of 5128877 is about 172.4543266323.

The spelling of 5128877 in words is "five million, one hundred twenty-eight thousand, eight hundred seventy-seven".

Divisors: 1 13 394529 5128877