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159308838 = 232131315197
BaseRepresentation
bin10010111111011…
…01110000100110
3102002202201122100
421133231300212
5311240340323
623450312530
73643050153
oct1137556046
9362681570
10159308838
1181a200a7
1245428746
132700acb0
141722d22a
15debc943
hex97edc26

159308838 has 48 divisors (see below), whose sum is σ = 374630256. Its totient is φ = 48634560.

The previous prime is 159308837. The next prime is 159308893. The reversal of 159308838 is 838803951.

It is a junction number, because it is equal to n+sod(n) for n = 159308793 and 159308802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159308837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28056 + ... + 33252.

It is an arithmetic number, because the mean of its divisors is an integer number (7804797).

Almost surely, 2159308838 is an apocalyptic number.

159308838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 159308838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187315128).

159308838 is an abundant number, since it is smaller than the sum of its proper divisors (215321418).

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

159308838 is a wasteful number, since it uses less digits than its factorization.

159308838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5349 (or 5346 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 159308838 is about 12621.7604952716. The cubic root of 159308838 is about 542.1006857151.

The spelling of 159308838 in words is "one hundred fifty-nine million, three hundred eight thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 131 234 262 393 786 1179 1703 2358 3406 5109 5197 10218 10394 15327 15591 30654 31182 46773 67561 93546 135122 202683 405366 608049 680807 1216098 1361614 2042421 4084842 6127263 8850491 12254526 17700982 26551473 53102946 79654419 159308838