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22608201 = 371197871
BaseRepresentation
bin101011000111…
…1100101001001
31120112121121210
41112033211021
521241430301
62124323333
7363111060
oct126174511
946477553
1022608201
1111841970
1276a3549
1348b7645
1430071d7
151eb8ad6
hex158f949

22608201 has 16 divisors (see below), whose sum is σ = 37582848. Its totient is φ = 11744400.

The previous prime is 22608169. The next prime is 22608203. The reversal of 22608201 is 10280622.

It is not a de Polignac number, because 22608201 - 25 = 22608169 is a prime.

It is a super-2 number, since 2×226082012 = 1022261504912802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (22608203) 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 15 ways as a sum of consecutive naturals, for example, 48705 + ... + 49166.

It is an arithmetic number, because the mean of its divisors is an integer number (2348928).

Almost surely, 222608201 is an apocalyptic number.

22608201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22608201 is a deficient number, since it is larger than the sum of its proper divisors (14974647).

22608201 is a wasteful number, since it uses less digits than its factorization.

22608201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97892.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 22608201 is about 4754.8081980244. The cubic root of 22608201 is about 282.7626231406.

Adding to 22608201 its reverse (10280622), we get a palindrome (32888823).

The spelling of 22608201 in words is "twenty-two million, six hundred eight thousand, two hundred one".

Divisors: 1 3 7 11 21 33 77 231 97871 293613 685097 1076581 2055291 3229743 7536067 22608201