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22751141 = 72464309
BaseRepresentation
bin101011011001…
…0011110100101
31120210212200212
41112302132211
521311014031
62131345205
7364244600
oct126623645
946725625
1022751141
111192a2a6
127752205
13493771a
143043337
151ee612b
hex15b27a5

22751141 has 6 divisors (see below), whose sum is σ = 26465670. Its totient is φ = 19500936.

The previous prime is 22751137. The next prime is 22751143. The reversal of 22751141 is 14115722.

It can be written as a sum of positive squares in only one way, i.e., 14025025 + 8726116 = 3745^2 + 2954^2 .

It is not a de Polignac number, because 22751141 - 22 = 22751137 is a prime.

It is a super-2 number, since 2×227511412 = 1035228833603762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22751143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 232106 + ... + 232203.

It is an arithmetic number, because the mean of its divisors is an integer number (4410945).

Almost surely, 222751141 is an apocalyptic number.

It is an amenable number.

22751141 is a deficient number, since it is larger than the sum of its proper divisors (3714529).

22751141 is an equidigital number, since it uses as much as digits as its factorization.

22751141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464323 (or 464316 counting only the distinct ones).

The product of its digits is 560, while the sum is 23.

The square root of 22751141 is about 4769.8156148849. The cubic root of 22751141 is about 283.3572923992.

Adding to 22751141 its reverse (14115722), we get a palindrome (36866863).

The spelling of 22751141 in words is "twenty-two million, seven hundred fifty-one thousand, one hundred forty-one".

Divisors: 1 7 49 464309 3250163 22751141