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22148932 = 22131572713
BaseRepresentation
bin101010001111…
…1011101000100
31112200021121211
41110133131010
521132231212
62110421204
7356156101
oct124373504
945607554
1022148932
1111558903
127501804
1347865a0
142d27aa8
151e279a7
hex151f744

22148932 has 24 divisors (see below), whose sum is σ = 42023576. Its totient is φ = 10153728.

The previous prime is 22148921. The next prime is 22148939. The reversal of 22148932 is 23984122.

It can be written as a sum of positive squares in 4 ways, for example, as 3779136 + 18369796 = 1944^2 + 4286^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22148894 and 22148903.

It is not an unprimeable number, because it can be changed into a prime (22148939) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6808 + ... + 9520.

Almost surely, 222148932 is an apocalyptic number.

It is an amenable number.

22148932 is a deficient number, since it is larger than the sum of its proper divisors (19874644).

22148932 is a wasteful number, since it uses less digits than its factorization.

22148932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887 (or 2885 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 22148932 is about 4706.2651858985. The cubic root of 22148932 is about 280.8348045213.

The spelling of 22148932 in words is "twenty-two million, one hundred forty-eight thousand, nine hundred thirty-two".

Divisors: 1 2 4 13 26 52 157 314 628 2041 2713 4082 5426 8164 10852 35269 70538 141076 425941 851882 1703764 5537233 11074466 22148932