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22141993 = 29839199
BaseRepresentation
bin101010001110…
…1110000101001
31112122221002211
41110131300221
521132020433
62110325121
7356126626
oct124356051
945587084
1022141993
1111553675
1274b97a1
134783393
142d2534d
151e258cd
hex151dc29

22141993 has 8 divisors (see below), whose sum is σ = 23184000. Its totient is φ = 21118608.

The previous prime is 22141981. The next prime is 22142023. The reversal of 22141993 is 39914122.

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

It is a cyclic number.

It is not a de Polignac number, because 22141993 - 25 = 22141961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22141793) 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, 2193 + ... + 7006.

It is an arithmetic number, because the mean of its divisors is an integer number (2898000).

Almost surely, 222141993 is an apocalyptic number.

It is an amenable number.

22141993 is a deficient number, since it is larger than the sum of its proper divisors (1042007).

22141993 is an equidigital number, since it uses as much as digits as its factorization.

22141993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9311.

The product of its digits is 3888, while the sum is 31.

The square root of 22141993 is about 4705.5279193731. The cubic root of 22141993 is about 280.8054740439.

The spelling of 22141993 in words is "twenty-two million, one hundred forty-one thousand, nine hundred ninety-three".

Divisors: 1 29 83 2407 9199 266771 763517 22141993