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22160430 = 23251132179
BaseRepresentation
bin101010010001…
…0010000101110
31112200212101200
41110202100232
521133113210
62110550330
7356234445
oct124422056
945625350
1022160430
1111566506
1275083a6
13478b8a6
142d2bd5c
151e2b0c0
hex152242e

22160430 has 48 divisors (see below), whose sum is σ = 58153680. Its totient is φ = 5854464.

The previous prime is 22160429. The next prime is 22160471. The reversal of 22160430 is 3406122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9081 + ... + 11259.

It is an arithmetic number, because the mean of its divisors is an integer number (1211535).

Almost surely, 222160430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22160430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29076840).

22160430 is an abundant number, since it is smaller than the sum of its proper divisors (35993250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22160430 is a wasteful number, since it uses less digits than its factorization.

22160430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305 (or 2302 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 22160430 is about 4707.4865905279. The cubic root of 22160430 is about 280.8833919654.

Adding to 22160430 its reverse (3406122), we get a palindrome (25566552).

The spelling of 22160430 in words is "twenty-two million, one hundred sixty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 113 226 339 565 678 1017 1130 1695 2034 2179 3390 4358 5085 6537 10170 10895 13074 19611 21790 32685 39222 65370 98055 196110 246227 492454 738681 1231135 1477362 2216043 2462270 3693405 4432086 7386810 11080215 22160430