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10223538 = 2313131071
BaseRepresentation
bin100110111111…
…111110110010
3201020102001120
4212333332302
510104123123
61003043110
7152620143
oct46777662
921212046
1010223538
115853106
123510496
13216c540
141501aca
15d6e2e3
hex9bffb2

10223538 has 16 divisors (see below), whose sum is σ = 22020096. Its totient is φ = 3145680.

The previous prime is 10223537. The next prime is 10223561. The reversal of 10223538 is 83532201.

It is not an unprimeable number, because it can be changed into a prime (10223533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65458 + ... + 65613.

It is an arithmetic number, because the mean of its divisors is an integer number (1376256).

Almost surely, 210223538 is an apocalyptic number.

10223538 is an abundant number, since it is smaller than the sum of its proper divisors (11796558).

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

10223538 is a wasteful number, since it uses less digits than its factorization.

10223538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131089.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 10223538 is about 3197.4267778950. The cubic root of 10223538 is about 217.0369803965.

Adding to 10223538 its reverse (83532201), we get a palindrome (93755739).

It can be divided in two parts, 1022 and 3538, that added together give a triangular number (4560 = T95).

The spelling of 10223538 in words is "ten million, two hundred twenty-three thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 13 26 39 78 131071 262142 393213 786426 1703923 3407846 5111769 10223538