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22255029 = 322472781
BaseRepresentation
bin101010011100…
…1010110110101
31112212200011100
41110321112311
521144130104
62113000313
7360110316
oct124712665
945780140
1022255029
1111620595
127553099
1347c2974
142d5460d
151e49139
hex15395b5

22255029 has 6 divisors (see below), whose sum is σ = 32146166. Its totient is φ = 14836680.

The previous prime is 22255027. The next prime is 22255031. The reversal of 22255029 is 92055222.

It is an interprime number because it is at equal distance from previous prime (22255027) and next prime (22255031).

It can be written as a sum of positive squares in only one way, i.e., 21762225 + 492804 = 4665^2 + 702^2 .

It is not a de Polignac number, because 22255029 - 21 = 22255027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22254993 and 22255011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22255027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1236382 + ... + 1236399.

Almost surely, 222255029 is an apocalyptic number.

It is an amenable number.

22255029 is a deficient number, since it is larger than the sum of its proper divisors (9891137).

22255029 is a wasteful number, since it uses less digits than its factorization.

22255029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472787 (or 2472784 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 22255029 is about 4717.5236088439. The cubic root of 22255029 is about 281.2825052801.

The spelling of 22255029 in words is "twenty-two million, two hundred fifty-five thousand, twenty-nine".

Divisors: 1 3 9 2472781 7418343 22255029