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226185197 = 7234771421
BaseRepresentation
bin11010111101101…
…00111111101101
3120202121101202112
431132310333231
5430400411242
634235533405
75414354030
oct1536647755
9522541675
10226185197
11106748317
12638ba265
1337b24ac4
142207b017
1514cccc82
hexd7b4fed

226185197 has 32 divisors (see below), whose sum is σ = 280018944. Its totient is φ = 178516800.

The previous prime is 226185143. The next prime is 226185227. The reversal of 226185197 is 791581622.

It is not a de Polignac number, because 226185197 - 210 = 226184173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226185797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 537047 + ... + 537467.

It is an arithmetic number, because the mean of its divisors is an integer number (8750592).

Almost surely, 2226185197 is an apocalyptic number.

It is an amenable number.

226185197 is a deficient number, since it is larger than the sum of its proper divisors (53833747).

226185197 is a wasteful number, since it uses less digits than its factorization.

226185197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569.

The product of its digits is 60480, while the sum is 41.

The square root of 226185197 is about 15039.4546776138. The cubic root of 226185197 is about 609.2862717432.

The spelling of 226185197 in words is "two hundred twenty-six million, one hundred eighty-five thousand, one hundred ninety-seven".

Divisors: 1 7 23 47 71 161 329 421 497 1081 1633 2947 3337 7567 9683 11431 19787 23359 29891 67781 76751 138509 209237 455101 537257 687493 1404877 3185707 4812451 9834139 32312171 226185197