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157018812385072 = 24118503971049101
BaseRepresentation
bin100011101100111011001010…
…100010010000011100110000
3202120221212000000020221122111
4203230323022202100130300
5131040044011432310242
61313541240244215104
745034143355514401
oct4354731242203460
9676855000227574
10157018812385072
1146038339134990
121573b36a69a494
13697ca6c7c3031
142aaba72d0d9a8
1513246464a8817
hex8ececa890730

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".

Divisors: 1 2 4 8 11 16 22 44 88 176 850397 1049101 1700794 2098202 3401588 4196404 6803176 8392808 9354367 11540111 13606352 16785616 18708734 23080222 37417468 46160444 74834936 92320888 149669872 184641776 892152343097 1784304686194 3568609372388 7137218744776 9813675774067 14274437489552 19627351548134 39254703096268 78509406192536 157018812385072