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30211022 = 2791071787
BaseRepresentation
bin111001100111…
…1101111001110
32002211212201202
41303033233032
530213223042
62555305502
7514534532
oct163175716
962755652
1030211022
1116064a96
12a14b292
13634a05a
144025bc2
1529bb632
hex1ccfbce

30211022 has 16 divisors (see below), whose sum is σ = 46344960. Its totient is φ = 14766648.

The previous prime is 30211001. The next prime is 30211031. The reversal of 30211022 is 22011203.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30210994 and 30211012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16013 + ... + 17799.

It is an arithmetic number, because the mean of its divisors is an integer number (2896560).

Almost surely, 230211022 is an apocalyptic number.

30211022 is a deficient number, since it is larger than the sum of its proper divisors (16133938).

30211022 is a wasteful number, since it uses less digits than its factorization.

30211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 30211022 is about 5496.4554032576. The cubic root of 30211022 is about 311.4500983713.

Adding to 30211022 its reverse (22011203), we get a palindrome (52222225).

The spelling of 30211022 in words is "thirty million, two hundred eleven thousand, twenty-two".

Divisors: 1 2 79 107 158 214 1787 3574 8453 16906 141173 191209 282346 382418 15105511 30211022