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159143020 = 2257957151
BaseRepresentation
bin10010111110001…
…01010001101100
3102002110022011221
421133011101230
5311220034040
623442553124
73641456551
oct1137052154
9362408157
10159143020
1181917563
12453687a4
1326c8068a
14171c8a28
15de8874a
hex97c546c

159143020 has 12 divisors (see below), whose sum is σ = 334200384. Its totient is φ = 63657200.

The previous prime is 159143009. The next prime is 159143027. The reversal of 159143020 is 20341951.

159143020 is digitally balanced in base 2, base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

159143020 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (159143027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3978556 + ... + 3978595.

It is an arithmetic number, because the mean of its divisors is an integer number (27850032).

Almost surely, 2159143020 is an apocalyptic number.

159143020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159143020 is an abundant number, since it is smaller than the sum of its proper divisors (175057364).

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

159143020 is a wasteful number, since it uses less digits than its factorization.

159143020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7957160 (or 7957158 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 159143020 is about 12615.1900500944. The cubic root of 159143020 is about 541.9125370049.

Adding to 159143020 its reverse (20341951), we get a palindrome (179484971).

The spelling of 159143020 in words is "one hundred fifty-nine million, one hundred forty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 7957151 15914302 31828604 39785755 79571510 159143020