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22146969 = 313567871
BaseRepresentation
bin101010001111…
…0111110011001
31112200011221010
41110132332121
521132200334
62110404133
7356150265
oct124367631
945604833
1022146969
1111557389
127500649
134785720
142d270a5
151e270e9
hex151ef99

22146969 has 8 divisors (see below), whose sum is σ = 31800832. Its totient is φ = 13628880.

The previous prime is 22146961. The next prime is 22146997. The reversal of 22146969 is 96964122.

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

It is not a de Polignac number, because 22146969 - 23 = 22146961 is a prime.

It is a super-2 number, since 2×221469692 = 980976471773922, 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: 567871 = 22146969 / (2 + 2 + 1 + 4 + 6 + 9 + 6 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22146961) 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, 283897 + ... + 283974.

It is an arithmetic number, because the mean of its divisors is an integer number (3975104).

Almost surely, 222146969 is an apocalyptic number.

It is an amenable number.

22146969 is a deficient number, since it is larger than the sum of its proper divisors (9653863).

22146969 is a wasteful number, since it uses less digits than its factorization.

22146969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567887.

The product of its digits is 46656, while the sum is 39.

The square root of 22146969 is about 4706.0566294935. The cubic root of 22146969 is about 280.8265077329.

The spelling of 22146969 in words is "twenty-two million, one hundred forty-six thousand, nine hundred sixty-nine".

Divisors: 1 3 13 39 567871 1703613 7382323 22146969