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159811149 = 3243721859
BaseRepresentation
bin10011000011010…
…00011001001101
3102010201020200110
421201220121031
5311402424044
623505150233
73650241501
oct1141503115
9363636613
10159811149
1182233533
124562b379
1327155814
1417320301
15e06b6b9
hex986864d

159811149 has 8 divisors (see below), whose sum is σ = 213178720. Its totient is φ = 106492176.

The previous prime is 159811133. The next prime is 159811187. The reversal of 159811149 is 941118951.

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

It is not a de Polignac number, because 159811149 - 24 = 159811133 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 (159811049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3619 + ... + 18240.

It is an arithmetic number, because the mean of its divisors is an integer number (26647340).

Almost surely, 2159811149 is an apocalyptic number.

It is an amenable number.

159811149 is a deficient number, since it is larger than the sum of its proper divisors (53367571).

159811149 is a wasteful number, since it uses less digits than its factorization.

159811149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24299.

The product of its digits is 12960, while the sum is 39.

The square root of 159811149 is about 12641.6434453753. The cubic root of 159811149 is about 542.6698473611.

The spelling of 159811149 in words is "one hundred fifty-nine million, eight hundred eleven thousand, one hundred forty-nine".

Divisors: 1 3 2437 7311 21859 65577 53270383 159811149