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22147041 = 371054621
BaseRepresentation
bin101010001111…
…0111111100001
31112200012000210
41110132333201
521132201131
62110404333
7356150430
oct124367741
945605023
1022147041
1111557444
1275006a9
134785777
142d27117
151e27146
hex151efe1

22147041 has 8 divisors (see below), whose sum is σ = 33747904. Its totient is φ = 12655440.

The previous prime is 22147031. The next prime is 22147043. The reversal of 22147041 is 14074122.

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 22147041 - 218 = 21884897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1054621 = 22147041 / (2 + 2 + 1 + 4 + 7 + 0 + 4 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22146999 and 22147017.

It is not an unprimeable number, because it can be changed into a prime (22147043) 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, 527290 + ... + 527331.

It is an arithmetic number, because the mean of its divisors is an integer number (4218488).

Almost surely, 222147041 is an apocalyptic number.

22147041 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22147041 is a deficient number, since it is larger than the sum of its proper divisors (11600863).

22147041 is a wasteful number, since it uses less digits than its factorization.

22147041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054631.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 22147041 is about 4706.0642792040. The cubic root of 22147041 is about 280.8268120557.

The spelling of 22147041 in words is "twenty-two million, one hundred forty-seven thousand, forty-one".

Divisors: 1 3 7 21 1054621 3163863 7382347 22147041