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1055249 = 1381173
BaseRepresentation
bin100000001101000010001
31222121112022
410001220101
5232231444
634341225
711653346
oct4015021
91877468
101055249
11660908
1242a815
132ac410
141d67cd
1515c9ee
hex101a11

1055249 has 4 divisors (see below), whose sum is σ = 1136436. Its totient is φ = 974064.

The previous prime is 1055233. The next prime is 1055251. The reversal of 1055249 is 9425501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9425501 = 19496079.

It can be written as a sum of positive squares in 2 ways, for example, as 208849 + 846400 = 457^2 + 920^2 .

It is not a de Polignac number, because 1055249 - 24 = 1055233 is a prime.

It is a super-2 number, since 2×10552492 = 2227100904002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055269) 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, 40574 + ... + 40599.

It is an arithmetic number, because the mean of its divisors is an integer number (284109).

21055249 is an apocalyptic number.

It is an amenable number.

1055249 is a deficient number, since it is larger than the sum of its proper divisors (81187).

1055249 is an equidigital number, since it uses as much as digits as its factorization.

1055249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81186.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1055249 is about 1027.2531333610. The cubic root of 1055249 is about 101.8087213642.

It can be divided in two parts, 10552 and 49, that added together give a palindrome (10601).

The spelling of 1055249 in words is "one million, fifty-five thousand, two hundred forty-nine".

Divisors: 1 13 81173 1055249