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10628405 = 52125681
BaseRepresentation
bin101000100010…
…110100110101
3201222222102122
4220202310311
510210102110
61015445325
7156224414
oct50426465
921888378
1010628405
115aaa307
123686845
1322818c8
1415a947b
15dee255
hexa22d35

10628405 has 4 divisors (see below), whose sum is σ = 12754092. Its totient is φ = 8502720.

The previous prime is 10628377. The next prime is 10628419. The reversal of 10628405 is 50482601.

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 1423249 + 9205156 = 1193^2 + 3034^2 .

It is a de Polignac number, because none of the positive numbers 2k-10628405 is a prime.

It is a super-2 number, since 2×106284052 = 225925985688050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 1062836 + ... + 1062845.

It is an arithmetic number, because the mean of its divisors is an integer number (3188523).

Almost surely, 210628405 is an apocalyptic number.

It is an amenable number.

10628405 is a deficient number, since it is larger than the sum of its proper divisors (2125687).

10628405 is an equidigital number, since it uses as much as digits as its factorization.

10628405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125686.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 10628405 is about 3260.1234639197. The cubic root of 10628405 is about 219.8649653429.

The spelling of 10628405 in words is "ten million, six hundred twenty-eight thousand, four hundred five".

Divisors: 1 5 2125681 10628405