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22030101 = 3219128831
BaseRepresentation
bin101010000001…
…0011100010101
31112110020121200
41110002130111
521114430401
62104103113
7355152462
oct124023425
945406550
1022030101
11114875a5
127464a99
134744482
142cd6669
151e02686
hex1502715

22030101 has 12 divisors (see below), whose sum is σ = 33496320. Its totient is φ = 13913640.

The previous prime is 22030091. The next prime is 22030121. The reversal of 22030101 is 10103022.

It is a happy number.

It is not a de Polignac number, because 22030101 - 26 = 22030037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22030121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64245 + ... + 64586.

It is an arithmetic number, because the mean of its divisors is an integer number (2791360).

Almost surely, 222030101 is an apocalyptic number.

It is an amenable number.

22030101 is a deficient number, since it is larger than the sum of its proper divisors (11466219).

22030101 is a wasteful number, since it uses less digits than its factorization.

22030101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128856 (or 128853 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 22030101 is about 4693.6234403710. The cubic root of 22030101 is about 280.3316690470.

Adding to 22030101 its reverse (10103022), we get a palindrome (32133123).

The spelling of 22030101 in words is "twenty-two million, thirty thousand, one hundred one".

Divisors: 1 3 9 19 57 171 128831 386493 1159479 2447789 7343367 22030101