Base | Representation |
---|---|
bin | 100011101100111011001010… |
… | …100010010000011100110000 |
3 | 202120221212000000020221122111 |
4 | 203230323022202100130300 |
5 | 131040044011432310242 |
6 | 1313541240244215104 |
7 | 45034143355514401 |
oct | 4354731242203460 |
9 | 676855000227574 |
10 | 157018812385072 |
11 | 46038339134990 |
12 | 1573b36a69a494 |
13 | 697ca6c7c3031 |
14 | 2aaba72d0d9a8 |
15 | 13246464a8817 |
hex | 8ececa890730 |
157018812385072 has 40 divisors (see below), whose sum is σ = 331881378245712. Its totient is φ = 71372035488000.
The previous prime is 157018812385033. The next prime is 157018812385079. The reversal of 157018812385072 is 270583218810751.
It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 157018812384998 and 157018812385016.
It is not an unprimeable number, because it can be changed into a prime (157018812385079) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149145322 + ... + 150194422.
Almost surely, 2157018812385072 is an apocalyptic number.
It is an amenable number.
157018812385072 is an abundant number, since it is smaller than the sum of its proper divisors (174862565860640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
157018812385072 is a wasteful number, since it uses less digits than its factorization.
157018812385072 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1899517 (or 1899511 counting only the distinct ones).
The product of its (nonzero) digits is 7526400, while the sum is 58.
The spelling of 157018812385072 in words is "one hundred fifty-seven trillion, eighteen billion, eight hundred twelve million, three hundred eighty-five thousand, seventy-two".
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