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16226269 = 71228539
BaseRepresentation
bin111101111001…
…011111011101
31010112101020221
4331321133131
513123220034
61335441341
7254630623
oct75713735
933471227
1016226269
119183044
125526251
133491857
142225513
151657bb4
hexf797dd

16226269 has 4 divisors (see below), whose sum is σ = 16454880. Its totient is φ = 15997660.

The previous prime is 16226267. The next prime is 16226291. The reversal of 16226269 is 96262261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96262261 = 750712823.

It is a cyclic number.

It is not a de Polignac number, because 16226269 - 21 = 16226267 is a prime.

It is a super-2 number, since 2×162262692 = 526583611320722, 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 (16226263) 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, 114199 + ... + 114340.

It is an arithmetic number, because the mean of its divisors is an integer number (4113720).

Almost surely, 216226269 is an apocalyptic number.

It is an amenable number.

16226269 is a deficient number, since it is larger than the sum of its proper divisors (228611).

16226269 is an equidigital number, since it uses as much as digits as its factorization.

16226269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228610.

The product of its digits is 15552, while the sum is 34.

The square root of 16226269 is about 4028.1843304397. The cubic root of 16226269 is about 253.1664919841.

The spelling of 16226269 in words is "sixteen million, two hundred twenty-six thousand, two hundred sixty-nine".

Divisors: 1 71 228539 16226269