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159986306392 = 231112717979973
BaseRepresentation
bin1001010011111111101…
…1010100110101011000
3120021221201110102220021
42110333323110311120
510110122443301032
6201255141440224
714362416111103
oct2247773246530
9507851412807
10159986306392
116193910aa30
122700b110074
1312118483ab3
147a59b8b73a
154265685097
hex253fed4d58

159986306392 has 64 divisors (see below), whose sum is σ = 331668172800. Its totient is φ = 71744480640.

The previous prime is 159986306387. The next prime is 159986306429. The reversal of 159986306392 is 293603689951.

It is a self number, because there is not a number n which added to its sum of digits gives 159986306392.

It is a congruent number.

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, 1960518 + ... + 2040490.

It is an arithmetic number, because the mean of its divisors is an integer number (5182315200).

Almost surely, 2159986306392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159986306392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165834086400).

159986306392 is an abundant number, since it is smaller than the sum of its proper divisors (171681866408).

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

159986306392 is a wasteful number, since it uses less digits than its factorization.

159986306392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80296 (or 80292 counting only the distinct ones).

The product of its (nonzero) digits is 18895680, while the sum is 61.

The spelling of 159986306392 in words is "one hundred fifty-nine billion, nine hundred eighty-six million, three hundred six thousand, three hundred ninety-two".

Divisors: 1 2 4 8 11 22 44 88 127 179 254 358 508 716 1016 1397 1432 1969 2794 3938 5588 7876 11176 15752 22733 45466 79973 90932 159946 181864 250063 319892 500126 639784 879703 1000252 1759406 2000504 3518812 7037624 10156571 14315167 20313142 28630334 40626284 57260668 81252568 111722281 114521336 157466837 223444562 314933674 446889124 629867348 893778248 1259734696 1818026209 3636052418 7272104836 14544209672 19998288299 39996576598 79993153196 159986306392