Base | Representation |
---|---|
bin | 1001001001111100001… |
… | …0111100010101100110 |
3 | 120000222121120011210201 |
4 | 2102133002330111212 |
5 | 10034111003441210 |
6 | 200131241541114 |
7 | 14235502620004 |
oct | 2223702742546 |
9 | 500877504721 |
10 | 157287171430 |
11 | 60783564984 |
12 | 265971a479a |
13 | 11aa821100c |
14 | 7881501a74 |
15 | 415872153a |
hex | 249f0bc566 |
157287171430 has 16 divisors (see below), whose sum is σ = 283167057600. Its totient is φ = 62903724352.
The previous prime is 157287171361. The next prime is 157287171449. The reversal of 157287171430 is 34171782751.
157287171430 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1333630 + ... + 1446769.
It is an arithmetic number, because the mean of its divisors is an integer number (17697941100).
Almost surely, 2157287171430 is an apocalyptic number.
157287171430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
157287171430 is a deficient number, since it is larger than the sum of its proper divisors (125879886170).
157287171430 is a wasteful number, since it uses less digits than its factorization.
157287171430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2786063.
The product of its (nonzero) digits is 329280, while the sum is 46.
The spelling of 157287171430 in words is "one hundred fifty-seven billion, two hundred eighty-seven million, one hundred seventy-one thousand, four hundred thirty".
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