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10256145 = 354315901
BaseRepresentation
bin100111000111…
…111100010001
3201022001210020
4213013330101
510111144040
61003454053
7153114204
oct47077421
921261706
1010256145
115875659
123527329
132181333
14150d93b
15d78cd0
hex9c7f11

10256145 has 16 divisors (see below), whose sum is σ = 16792512. Its totient is φ = 5342400.

The previous prime is 10256131. The next prime is 10256161. The reversal of 10256145 is 54165201.

It is not a de Polignac number, because 10256145 - 212 = 10252049 is a prime.

It is a super-2 number, since 2×102561452 = 210377020522050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7306 + ... + 8595.

It is an arithmetic number, because the mean of its divisors is an integer number (1049532).

Almost surely, 210256145 is an apocalyptic number.

10256145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10256145 is a deficient number, since it is larger than the sum of its proper divisors (6536367).

10256145 is a wasteful number, since it uses less digits than its factorization.

10256145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15952.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 10256145 is about 3202.5216626902. The cubic root of 10256145 is about 217.2674751103.

It can be divided in two parts, 10256 and 145, that added together give a palindrome (10401).

The spelling of 10256145 in words is "ten million, two hundred fifty-six thousand, one hundred forty-five".

Divisors: 1 3 5 15 43 129 215 645 15901 47703 79505 238515 683743 2051229 3418715 10256145