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195897236 = 2271689779
BaseRepresentation
bin10111010110100…
…10011110010100
3111122121121111012
423223102132110
5400122202421
631234431352
74566045653
oct1353223624
9448547435
10195897236
11a0640547
1255732558
133177ba32
141c03519a
15122e895b
hexbad2794

195897236 has 12 divisors (see below), whose sum is σ = 347649120. Its totient is φ = 96568920.

The previous prime is 195897227. The next prime is 195897241. The reversal of 195897236 is 632798591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344606 + ... + 345173.

It is an arithmetic number, because the mean of its divisors is an integer number (28970760).

Almost surely, 2195897236 is an apocalyptic number.

It is an amenable number.

195897236 is a deficient number, since it is larger than the sum of its proper divisors (151751884).

195897236 is a wasteful number, since it uses less digits than its factorization.

195897236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689854 (or 689852 counting only the distinct ones).

The product of its digits is 816480, while the sum is 50.

The square root of 195897236 is about 13996.3293759471. The cubic root of 195897236 is about 580.7770362113. Note that the first 3 decimals are identical.

The spelling of 195897236 in words is "one hundred ninety-five million, eight hundred ninety-seven thousand, two hundred thirty-six".

Divisors: 1 2 4 71 142 284 689779 1379558 2759116 48974309 97948618 195897236