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2291055 = 351331379
BaseRepresentation
bin1000101111010101101111
311022101201220
420233111233
51041303210
6121034423
725321314
oct10572557
94271656
102291055
111325338
12925a13
13622a70
14438d0b
15303c70
hex22f56f

2291055 has 32 divisors (see below), whose sum is σ = 4085760. Its totient is φ = 1088640.

The previous prime is 2291041. The next prime is 2291063. The reversal of 2291055 is 5501922.

It is not a de Polignac number, because 2291055 - 26 = 2290991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5856 + ... + 6234.

It is an arithmetic number, because the mean of its divisors is an integer number (127680).

22291055 is an apocalyptic number.

2291055 is a deficient number, since it is larger than the sum of its proper divisors (1794705).

2291055 is a wasteful number, since it uses less digits than its factorization.

2291055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 2291055 is about 1513.6231367153. The cubic root of 2291055 is about 131.8292673270.

Adding to 2291055 its reverse (5501922), we get a palindrome (7792977).

The spelling of 2291055 in words is "two million, two hundred ninety-one thousand, fifty-five".

Divisors: 1 3 5 13 15 31 39 65 93 155 195 379 403 465 1137 1209 1895 2015 4927 5685 6045 11749 14781 24635 35247 58745 73905 152737 176235 458211 763685 2291055