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159315240 = 23357189661
BaseRepresentation
bin10010111111011…
…11010100101000
3102002210001102110
421133233110220
5311241041430
623450402320
73643104630
oct1137572450
9362701373
10159315240
1181a24997
12454303a0
1327010b96
14172316c0
15debe7b0
hex97ef528

159315240 has 64 divisors (see below), whose sum is σ = 546226560. Its totient is φ = 36414720.

The previous prime is 159315239. The next prime is 159315253. The reversal of 159315240 is 42513951.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 159315198 and 159315207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93991 + ... + 95670.

It is an arithmetic number, because the mean of its divisors is an integer number (8534790).

Almost surely, 2159315240 is an apocalyptic number.

159315240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159315240 is an abundant number, since it is smaller than the sum of its proper divisors (386911320).

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

159315240 is a wasteful number, since it uses less digits than its factorization.

159315240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189682 (or 189678 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 159315240 is about 12622.0141023531. The cubic root of 159315240 is about 542.1079472543.

The spelling of 159315240 in words is "one hundred fifty-nine million, three hundred fifteen thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 840 189661 379322 568983 758644 948305 1137966 1327627 1517288 1896610 2275932 2655254 2844915 3793220 3982881 4551864 5310508 5689830 6638135 7586440 7965762 10621016 11379660 13276270 15931524 19914405 22759320 26552540 31863048 39828810 53105080 79657620 159315240