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226057831 = 1991135969
BaseRepresentation
bin11010111100101…
…01111001100111
3120202100221001021
431132111321213
5430332322311
634233112011
75413313506
oct1536257147
9522327037
10226057831
1110667065a
1263858607
1337aabb3c
142204683d
1514ca5171
hexd795e67

226057831 has 4 divisors (see below), whose sum is σ = 227194000. Its totient is φ = 224921664.

The previous prime is 226057781. The next prime is 226057861. The reversal of 226057831 is 138750622.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138750622 = 269375311.

It is a cyclic number.

It is not a de Polignac number, because 226057831 - 27 = 226057703 is a prime.

It is a super-2 number, since 2×2260578312 = 102204285912849122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226057861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567786 + ... + 568183.

It is an arithmetic number, because the mean of its divisors is an integer number (56798500).

Almost surely, 2226057831 is an apocalyptic number.

226057831 is a deficient number, since it is larger than the sum of its proper divisors (1136169).

226057831 is a wasteful number, since it uses less digits than its factorization.

226057831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136168.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 226057831 is about 15035.2196857911. The cubic root of 226057831 is about 609.1718862352.

The spelling of 226057831 in words is "two hundred twenty-six million, fifty-seven thousand, eight hundred thirty-one".

Divisors: 1 199 1135969 226057831