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159371493 = 367792893
BaseRepresentation
bin10010111111111…
…01000011100101
3102002212220120220
421133331003211
5311244341433
623451514553
73643430631
oct1137750345
9362786526
10159371493
1181a63186
1245458a59
1327030678
1417247dc1
15ded12b3
hex97fd0e5

159371493 has 8 divisors (see below), whose sum is σ = 215667168. Its totient is φ = 104661744.

The previous prime is 159371491. The next prime is 159371497. The reversal of 159371493 is 394173951.

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

It is not a de Polignac number, because 159371493 - 21 = 159371491 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159371491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396246 + ... + 396647.

It is an arithmetic number, because the mean of its divisors is an integer number (26958396).

Almost surely, 2159371493 is an apocalyptic number.

It is an amenable number.

159371493 is a deficient number, since it is larger than the sum of its proper divisors (56295675).

159371493 is an equidigital number, since it uses as much as digits as its factorization.

159371493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792963.

The product of its digits is 102060, while the sum is 42.

The square root of 159371493 is about 12624.2422742912. The cubic root of 159371493 is about 542.1717444776.

The spelling of 159371493 in words is "one hundred fifty-nine million, three hundred seventy-one thousand, four hundred ninety-three".

Divisors: 1 3 67 201 792893 2378679 53123831 159371493