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226979369 = 1327171047
BaseRepresentation
bin11011000011101…
…10111000101001
3120211002202011022
431201312320221
5431101314434
634304542225
75424202301
oct1541667051
9524082138
10226979369
1110713aa61
1264021975
1338042426
1422206601
1514dd822e
hexd876e29

226979369 has 4 divisors (see below), whose sum is σ = 227151744. Its totient is φ = 226806996.

The previous prime is 226979351. The next prime is 226979383. The reversal of 226979369 is 963979622.

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.

It is a cyclic number.

It is not a de Polignac number, because 226979369 - 28 = 226979113 is a prime.

It is a super-2 number, since 2×2269793692 = 103039267903276322, 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 226979369.

It is not an unprimeable number, because it can be changed into a prime (226979329) 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, 84197 + ... + 86850.

It is an arithmetic number, because the mean of its divisors is an integer number (56787936).

Almost surely, 2226979369 is an apocalyptic number.

It is an amenable number.

226979369 is a deficient number, since it is larger than the sum of its proper divisors (172375).

226979369 is a wasteful number, since it uses less digits than its factorization.

226979369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172374.

The product of its digits is 2204496, while the sum is 53.

The square root of 226979369 is about 15065.8344939801. The cubic root of 226979369 is about 609.9985389197.

The spelling of 226979369 in words is "two hundred twenty-six million, nine hundred seventy-nine thousand, three hundred sixty-nine".

Divisors: 1 1327 171047 226979369