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159728412 = 22313310701
BaseRepresentation
bin10011000010101…
…00001100011100
3102010120001012010
421201110030130
5311342302122
623503311220
73646445334
oct1141241434
9363501163
10159728412
1182187358
12455ab510
1327126c6c
14172dc0c4
15e051e0c
hex985431c

159728412 has 12 divisors (see below), whose sum is σ = 372699656. Its totient is φ = 53242800.

The previous prime is 159728411. The next prime is 159728417. The reversal of 159728412 is 214827951.

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 (159728411) 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, 6655339 + ... + 6655362.

Almost surely, 2159728412 is an apocalyptic number.

159728412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

159728412 is an abundant number, since it is smaller than the sum of its proper divisors (212971244).

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

159728412 is a wasteful number, since it uses less digits than its factorization.

159728412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13310708 (or 13310706 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 159728412 is about 12638.3706228295. The cubic root of 159728412 is about 542.5761813352.

The spelling of 159728412 in words is "one hundred fifty-nine million, seven hundred twenty-eight thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 13310701 26621402 39932103 53242804 79864206 159728412