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227696985 = 32541167739
BaseRepresentation
bin11011001001001…
…10000101011001
3120212110012112200
431210212011121
5431242300420
634332200413
75433251415
oct1544460531
9525405480
10227696985
1110759012a
1264309109
1338233c59
1422351d45
1514ecab90
hexd926159

227696985 has 48 divisors (see below), whose sum is σ = 407272320. Its totient is φ = 117607680.

The previous prime is 227696939. The next prime is 227697013. The reversal of 227696985 is 589696722.

It is not a de Polignac number, because 227696985 - 27 = 227696857 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 307746 + ... + 308484.

It is an arithmetic number, because the mean of its divisors is an integer number (8484840).

Almost surely, 2227696985 is an apocalyptic number.

It is an amenable number.

227696985 is a deficient number, since it is larger than the sum of its proper divisors (179575335).

227696985 is a wasteful number, since it uses less digits than its factorization.

227696985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958 (or 955 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 227696985 is about 15089.6317052471. The cubic root of 227696985 is about 610.6407179846.

The spelling of 227696985 in words is "two hundred twenty-seven million, six hundred ninety-six thousand, nine hundred eighty-five".

Divisors: 1 3 5 9 15 41 45 123 167 205 369 501 615 739 835 1503 1845 2217 2505 3695 6651 6847 7515 11085 20541 30299 33255 34235 61623 90897 102705 123413 151495 272691 308115 370239 454485 617065 1110717 1363455 1851195 5059933 5553585 15179799 25299665 45539397 75898995 227696985