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22321201 = 723138641
BaseRepresentation
bin101010100100…
…1100000110001
31120000000221011
41111021200301
521203234301
62114230521
7360504250
oct125114061
946000834
1022321201
1111666281
127585441
134816b16
142d70797
151e5da51
hex1549831

22321201 has 8 divisors (see below), whose sum is σ = 26619264. Its totient is φ = 18300480.

The previous prime is 22321183. The next prime is 22321217. The reversal of 22321201 is 10212322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22321201 - 29 = 22320689 is a prime.

It is a super-3 number, since 3×223212013 (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22321231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69160 + ... + 69481.

It is an arithmetic number, because the mean of its divisors is an integer number (3327408).

Almost surely, 222321201 is an apocalyptic number.

It is an amenable number.

22321201 is a deficient number, since it is larger than the sum of its proper divisors (4298063).

22321201 is a wasteful number, since it uses less digits than its factorization.

22321201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138671.

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

The square root of 22321201 is about 4724.5318286577. The cubic root of 22321201 is about 281.5610132475.

Adding to 22321201 its reverse (10212322), we get a palindrome (32533523).

It can be divided in two parts, 22321 and 201, that added together give a palindrome (22522).

The spelling of 22321201 in words is "twenty-two million, three hundred twenty-one thousand, two hundred one".

Divisors: 1 7 23 161 138641 970487 3188743 22321201