Base | Representation |
---|---|
bin | 10010101110110… |
… | …01001100111001 |
3 | 101221122220101100 |
4 | 21113121030321 |
5 | 310211034411 |
6 | 23331442013 |
7 | 3615363420 |
oct | 1127311471 |
9 | 357586340 |
10 | 157127481 |
11 | 80770225 |
12 | 44756309 |
13 | 26726154 |
14 | 16c222b7 |
15 | dbdb456 |
hex | 95d9339 |
157127481 has 48 divisors (see below), whose sum is σ = 284169600. Its totient is φ = 81575424.
The previous prime is 157127459. The next prime is 157127483. The reversal of 157127481 is 184721751.
157127481 is a `hidden beast` number, since 1 + 57 + 127 + 481 = 666.
It is not a de Polignac number, because 157127481 - 25 = 157127449 is a prime.
It is a super-2 number, since 2×1571274812 = 49378090570810722, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (157127483) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28530 + ... + 33588.
It is an arithmetic number, because the mean of its divisors is an integer number (5920200).
Almost surely, 2157127481 is an apocalyptic number.
It is an amenable number.
157127481 is a deficient number, since it is larger than the sum of its proper divisors (127042119).
157127481 is a wasteful number, since it uses less digits than its factorization.
157127481 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5118 (or 5115 counting only the distinct ones).
The product of its digits is 15680, while the sum is 36.
The square root of 157127481 is about 12535.0500996207. The cubic root of 157127481 is about 539.6150445681.
The spelling of 157127481 in words is "one hundred fifty-seven million, one hundred twenty-seven thousand, four hundred eighty-one".
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