Search a number
-
+
159739105 = 5291101649
BaseRepresentation
bin10011000010101…
…10110011100001
3102010120120212011
421201112303201
5311343122410
623503432521
73646521451
oct1141266341
9363516764
10159739105
1182194399
12455b5741
132712baa6
1417301d61
15e05518a
hex9856ce1

159739105 has 8 divisors (see below), whose sum is σ = 198297000. Its totient is φ = 123384576.

The previous prime is 159739087. The next prime is 159739127. The reversal of 159739105 is 501937951.

It can be written as a sum of positive squares in 4 ways, for example, as 23853456 + 135885649 = 4884^2 + 11657^2 .

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 159739105 - 213 = 159730913 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 550680 + ... + 550969.

It is an arithmetic number, because the mean of its divisors is an integer number (24787125).

Almost surely, 2159739105 is an apocalyptic number.

It is an amenable number.

159739105 is a deficient number, since it is larger than the sum of its proper divisors (38557895).

159739105 is a wasteful number, since it uses less digits than its factorization.

159739105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101683.

The product of its (nonzero) digits is 42525, while the sum is 40.

The square root of 159739105 is about 12638.7936528768. The cubic root of 159739105 is about 542.5882886315.

The spelling of 159739105 in words is "one hundred fifty-nine million, seven hundred thirty-nine thousand, one hundred five".

Divisors: 1 5 29 145 1101649 5508245 31947821 159739105