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159799285 = 5231389559
BaseRepresentation
bin10011000011001…
…01011111110101
3102010200122102001
421201211133311
5311402034120
623505015301
73650162062
oct1141453765
9363618361
10159799285
1182225628
1245624531
13271502b9
1417319c69
15e067e0a
hex98657f5

159799285 has 8 divisors (see below), whose sum is σ = 200096640. Its totient is φ = 122281104.

The previous prime is 159799279. The next prime is 159799301. The reversal of 159799285 is 582997951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 159799285 - 211 = 159797237 is a prime.

It is a super-2 number, since 2×1597992852 = 51071622973022450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694665 + ... + 694894.

It is an arithmetic number, because the mean of its divisors is an integer number (25012080).

Almost surely, 2159799285 is an apocalyptic number.

It is an amenable number.

159799285 is a deficient number, since it is larger than the sum of its proper divisors (40297355).

159799285 is a wasteful number, since it uses less digits than its factorization.

159799285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389587.

The product of its digits is 2041200, while the sum is 55.

The square root of 159799285 is about 12641.1741938793. The cubic root of 159799285 is about 542.6564181888.

The spelling of 159799285 in words is "one hundred fifty-nine million, seven hundred ninety-nine thousand, two hundred eighty-five".

Divisors: 1 5 23 115 1389559 6947795 31959857 159799285