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226231831 = 7311278209
BaseRepresentation
bin11010111110000…
…00011000010111
3120202200202201201
431133000120113
5430403404311
634240533331
75414640010
oct1537003027
9522622651
10226231831
1110677a361
1263921247
1337b400b7
1422090007
1514cdb9c1
hexd7c0617

226231831 has 16 divisors (see below), whose sum is σ = 269025280. Its totient is φ = 186157440.

The previous prime is 226231787. The next prime is 226231843. The reversal of 226231831 is 138132622.

226231831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 226231831 - 225 = 192677399 is a prime.

It is a super-2 number, since 2×2262318312 = 102361682715225122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 226231831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226231331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23455 + ... + 31663.

It is an arithmetic number, because the mean of its divisors is an integer number (16814080).

Almost surely, 2226231831 is an apocalyptic number.

226231831 is a deficient number, since it is larger than the sum of its proper divisors (42793449).

226231831 is a wasteful number, since it uses less digits than its factorization.

226231831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8374.

The product of its digits is 3456, while the sum is 28.

The square root of 226231831 is about 15041.0049863698. The cubic root of 226231831 is about 609.3281423045.

The spelling of 226231831 in words is "two hundred twenty-six million, two hundred thirty-one thousand, eight hundred thirty-one".

Divisors: 1 7 31 127 217 889 3937 8209 27559 57463 254479 1042543 1781353 7297801 32318833 226231831