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264226031 = 1991327769
BaseRepresentation
bin11111011111111…
…00010011101111
3200102012001222022
433233330103233
51020120213111
642115140355
76355612166
oct1757742357
9612161868
10264226031
1112616aa23
12745a46bb
1342983984
14271403dd
15182e42db
hexfbfc4ef

264226031 has 4 divisors (see below), whose sum is σ = 265554000. Its totient is φ = 262898064.

The previous prime is 264225947. The next prime is 264226033. The reversal of 264226031 is 130622462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130622462 = 265311231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-264226031 is a prime.

It is a super-2 number, since 2×2642260312 = 139630790916025922, 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 (264226033) 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, 663686 + ... + 664083.

It is an arithmetic number, because the mean of its divisors is an integer number (66388500).

Almost surely, 2264226031 is an apocalyptic number.

264226031 is a deficient number, since it is larger than the sum of its proper divisors (1327969).

264226031 is a wasteful number, since it uses less digits than its factorization.

264226031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327968.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 264226031 is about 16255.0309442954. The cubic root of 264226031 is about 641.6898951356.

Adding to 264226031 its reverse (130622462), we get a palindrome (394848493).

The spelling of 264226031 in words is "two hundred sixty-four million, two hundred twenty-six thousand, thirty-one".

Divisors: 1 199 1327769 264226031