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159172353 = 3229575981
BaseRepresentation
bin10010111110011…
…00011100000001
3102002111210102100
421133030130001
5311222003403
623443341013
73641641224
oct1137143401
9362453370
10159172353
11819375aa
1245381769
1326c90b32
14171d55bb
15de922a3
hex97cc701

159172353 has 12 divisors (see below), whose sum is σ = 230031828. Its totient is φ = 106061280.

The previous prime is 159172313. The next prime is 159172361. The reversal of 159172353 is 353271951.

It can be written as a sum of positive squares in 2 ways, for example, as 14379264 + 144793089 = 3792^2 + 12033^2 .

It is not a de Polignac number, because 159172353 - 221 = 157075201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159172313) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 23623 + ... + 29603.

It is an arithmetic number, because the mean of its divisors is an integer number (19169319).

Almost surely, 2159172353 is an apocalyptic number.

It is an amenable number.

159172353 is a deficient number, since it is larger than the sum of its proper divisors (70859475).

159172353 is a wasteful number, since it uses less digits than its factorization.

159172353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8944 (or 8941 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 159172353 is about 12616.3526028722. The cubic root of 159172353 is about 541.9458297917.

The spelling of 159172353 in words is "one hundred fifty-nine million, one hundred seventy-two thousand, three hundred fifty-three".

Divisors: 1 3 9 2957 5981 8871 17943 26613 53829 17685817 53057451 159172353