Search a number
-
+
159142230 = 232513210463
BaseRepresentation
bin10010111110001…
…01000101010110
3102002110021002200
421133011011112
5311220022410
623442545330
73641454342
oct1137050526
9362407080
10159142230
1181916a05
1245368246
1326c80200
14171c8622
15de883c0
hex97c5156

159142230 has 72 divisors (see below), whose sum is σ = 448089408. Its totient is φ = 39169728.

The previous prime is 159142211. The next prime is 159142231. The reversal of 159142230 is 32241951.

159142230 is a `hidden beast` number, since 1 + 591 + 42 + 2 + 30 = 666.

159142230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 159142194 and 159142203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159142231) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9979 + ... + 20441.

It is an arithmetic number, because the mean of its divisors is an integer number (6223464).

Almost surely, 2159142230 is an apocalyptic number.

159142230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 159142230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224044704).

159142230 is an abundant number, since it is smaller than the sum of its proper divisors (288947178).

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

159142230 is a wasteful number, since it uses less digits than its factorization.

159142230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10502 (or 10486 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 159142230 is about 12615.1587385970. The cubic root of 159142230 is about 541.9116403029.

The spelling of 159142230 in words is "one hundred fifty-nine million, one hundred forty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 78 90 117 130 169 195 234 338 390 507 585 845 1014 1170 1521 1690 2535 3042 5070 7605 10463 15210 20926 31389 52315 62778 94167 104630 136019 156945 188334 272038 313890 408057 470835 680095 816114 941670 1224171 1360190 1768247 2040285 2448342 3536494 4080570 5304741 6120855 8841235 10609482 12241710 15914223 17682470 26523705 31828446 53047410 79571115 159142230