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22745160 = 23325234167
BaseRepresentation
bin101011011000…
…1000001001000
31120210120111100
41112301001020
521310321120
62131301400
7364221264
oct126610110
946716440
1022745160
1111925859
12774a860
134934a99
1430410a4
151ee4490
hex15b1048

22745160 has 192 divisors, whose sum is σ = 80196480. Its totient is φ = 5575680.

The previous prime is 22745159. The next prime is 22745161. The reversal of 22745160 is 6154722.

It is an interprime number because it is at equal distance from previous prime (22745159) and next prime (22745161).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22745161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 339447 + ... + 339513.

It is an arithmetic number, because the mean of its divisors is an integer number (417690).

Almost surely, 222745160 is an apocalyptic number.

22745160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22745160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40098240).

22745160 is an abundant number, since it is smaller than the sum of its proper divisors (57451320).

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

22745160 is a wasteful number, since it uses less digits than its factorization.

22745160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 22745160 is about 4769.1886102355. The cubic root of 22745160 is about 283.3324598205.

Adding to 22745160 its reverse (6154722), we get a palindrome (28899882).

The spelling of 22745160 in words is "twenty-two million, seven hundred forty-five thousand, one hundred sixty".