Search a number
-
+
155208668159 = 2332237297779
BaseRepresentation
bin1001000010001100101…
…0000101001111111111
3112211121202111021100002
42100203022011033333
510020331404340114
6155145112224515
714133133624466
oct2204312051777
9484552437302
10155208668159
115a907279686
12260b709b13b
131183670b91c
14772544d9dd
1540860037de
hex24232853ff

155208668159 has 8 divisors (see below), whose sum is σ = 155945003760. Its totient is φ = 154472933056.

The previous prime is 155208668141. The next prime is 155208668171. The reversal of 155208668159 is 951866802551.

It is a happy number.

155208668159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 155208668159 - 212 = 155208664063 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 (155208668359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372332 + ... + 670110.

It is an arithmetic number, because the mean of its divisors is an integer number (19493125470).

Almost surely, 2155208668159 is an apocalyptic number.

155208668159 is a deficient number, since it is larger than the sum of its proper divisors (736335601).

155208668159 is a wasteful number, since it uses less digits than its factorization.

155208668159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300249.

The product of its (nonzero) digits is 5184000, while the sum is 56.

The spelling of 155208668159 in words is "one hundred fifty-five billion, two hundred eight million, six hundred sixty-eight thousand, one hundred fifty-nine".

Divisors: 1 233 2237 297779 521221 69382507 666131623 155208668159