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22132631 = 122318097
BaseRepresentation
bin101010001101…
…1011110010111
31112122110021002
41110123132113
521131221011
62110213515
7356060423
oct124333627
945573232
1022132631
1111547634
1274b429b
13477c041
142d21b83
151e22c3b
hex151b797

22132631 has 4 divisors (see below), whose sum is σ = 22151952. Its totient is φ = 22113312.

The previous prime is 22132619. The next prime is 22132637. The reversal of 22132631 is 13623122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22132631 - 26 = 22132567 is a prime.

It is a super-2 number, since 2×221326312 = 979706709964322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22132637) 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, 7826 + ... + 10271.

It is an arithmetic number, because the mean of its divisors is an integer number (5537988).

Almost surely, 222132631 is an apocalyptic number.

22132631 is a deficient number, since it is larger than the sum of its proper divisors (19321).

22132631 is a wasteful number, since it uses less digits than its factorization.

22132631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19320.

The product of its digits is 432, while the sum is 20.

The square root of 22132631 is about 4704.5330267732. The cubic root of 22132631 is about 280.7658920688.

Adding to 22132631 its reverse (13623122), we get a palindrome (35755753).

The spelling of 22132631 in words is "twenty-two million, one hundred thirty-two thousand, six hundred thirty-one".

Divisors: 1 1223 18097 22132631