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159947292 = 22313328941
BaseRepresentation
bin10011000100010…
…01101000011100
3102010222011102210
421202021220130
5311421303132
623512120420
73651346431
oct1142115034
9363864383
10159947292
118231684a
1245696110
13271a278b
1417357b88
15e096bcc
hex9889a1c

159947292 has 12 divisors (see below), whose sum is σ = 373210376. Its totient is φ = 53315760.

The previous prime is 159947261. The next prime is 159947299. The reversal of 159947292 is 292749951.

159947292 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159947299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6664459 + ... + 6664482.

Almost surely, 2159947292 is an apocalyptic number.

159947292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

159947292 is an abundant number, since it is smaller than the sum of its proper divisors (213263084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159947292 is a wasteful number, since it uses less digits than its factorization.

159947292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13328948 (or 13328946 counting only the distinct ones).

The product of its digits is 408240, while the sum is 48.

The square root of 159947292 is about 12647.0270024223. The cubic root of 159947292 is about 542.8239036369.

The spelling of 159947292 in words is "one hundred fifty-nine million, nine hundred forty-seven thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 13328941 26657882 39986823 53315764 79973646 159947292