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22029969 = 313564871
BaseRepresentation
bin101010000001…
…0011010010001
31112110020102210
41110002122101
521114424334
62104102333
7355152213
oct124023221
945406383
1022029969
1111487495
1274649a9
1347443b0
142cd65b3
151e025e9
hex1502691

22029969 has 8 divisors (see below), whose sum is σ = 31632832. Its totient is φ = 13556880.

The previous prime is 22029923. The next prime is 22029979. The reversal of 22029969 is 96992022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22029969 - 28 = 22029713 is a prime.

It is a super-2 number, since 2×220299692 = 970639068281922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 564871 = 22029969 / (2 + 2 + 0 + 2 + 9 + 9 + 6 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22029979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282397 + ... + 282474.

It is an arithmetic number, because the mean of its divisors is an integer number (3954104).

Almost surely, 222029969 is an apocalyptic number.

It is an amenable number.

22029969 is a deficient number, since it is larger than the sum of its proper divisors (9602863).

22029969 is a wasteful number, since it uses less digits than its factorization.

22029969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564887.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 22029969 is about 4693.6093787191. The cubic root of 22029969 is about 280.3311091486.

The spelling of 22029969 in words is "twenty-two million, twenty-nine thousand, nine hundred sixty-nine".

Divisors: 1 3 13 39 564871 1694613 7343323 22029969