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22101029 is a prime number
BaseRepresentation
bin101010001001…
…1110000100101
31112120211220122
41110103300211
521124213104
62105411325
7355566326
oct124236045
945524818
1022101029
1111525915
127499b45
13476a842
142d1444d
151e186be
hex1513c25

22101029 has 2 divisors, whose sum is σ = 22101030. Its totient is φ = 22101028.

The previous prime is 22100959. The next prime is 22101041. The reversal of 22101029 is 92010122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20340100 + 1760929 = 4510^2 + 1327^2 .

It is a cyclic number.

It is not a de Polignac number, because 22101029 - 212 = 22096933 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22100998 and 22101016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22101049) by changing a digit.

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 as a sum of consecutive naturals, namely, 11050514 + 11050515.

It is an arithmetic number, because the mean of its divisors is an integer number (11050515).

Almost surely, 222101029 is an apocalyptic number.

It is an amenable number.

22101029 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101029 is an equidigital number, since it uses as much as digits as its factorization.

22101029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 22101029 is about 4701.1731514591. The cubic root of 22101029 is about 280.6321982172.

The spelling of 22101029 in words is "twenty-two million, one hundred one thousand, twenty-nine".