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22201132 = 227178173
BaseRepresentation
bin101010010110…
…0001100101100
31112202221020011
41110230030230
521140414012
62111503004
7356464222
oct124541454
945687204
1022201132
1111594048
127527a64
1347a4285
142d3cb12
151e381a7
hex152c32c

22201132 has 12 divisors (see below), whose sum is σ = 39399696. Its totient is φ = 10944080.

The previous prime is 22201129. The next prime is 22201159. The reversal of 22201132 is 23110222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38803 + ... + 39370.

It is an arithmetic number, because the mean of its divisors is an integer number (3283308).

Almost surely, 222201132 is an apocalyptic number.

It is an amenable number.

22201132 is a deficient number, since it is larger than the sum of its proper divisors (17198564).

22201132 is a wasteful number, since it uses less digits than its factorization.

22201132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78248 (or 78246 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22201132 is about 4711.8077210345. The cubic root of 22201132 is about 281.0552527039.

Adding to 22201132 its reverse (23110222), we get a palindrome (45311354).

The spelling of 22201132 in words is "twenty-two million, two hundred one thousand, one hundred thirty-two".

Divisors: 1 2 4 71 142 284 78173 156346 312692 5550283 11100566 22201132