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22093641 = 34272761
BaseRepresentation
bin101010001000…
…1111101001001
31112120110210000
41110101331021
521123444031
62105313213
7355535643
oct124217511
945513700
1022093641
1111520309
127495809
13476737b
142d11893
151e163e6
hex1511f49

22093641 has 10 divisors (see below), whose sum is σ = 33004202. Its totient is φ = 14729040.

The previous prime is 22093609. The next prime is 22093661. The reversal of 22093641 is 14639022.

It can be written as a sum of positive squares in only one way, i.e., 15968016 + 6125625 = 3996^2 + 2475^2 .

It is not a de Polignac number, because 22093641 - 25 = 22093609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22093601) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 136300 + ... + 136461.

Almost surely, 222093641 is an apocalyptic number.

It is an amenable number.

22093641 is a deficient number, since it is larger than the sum of its proper divisors (10910561).

22093641 is an equidigital number, since it uses as much as digits as its factorization.

22093641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272773 (or 272764 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 22093641 is about 4700.3873244659. The cubic root of 22093641 is about 280.6009245338.

The spelling of 22093641 in words is "twenty-two million, ninety-three thousand, six hundred forty-one".

Divisors: 1 3 9 27 81 272761 818283 2454849 7364547 22093641