Base | Representation |
---|---|
bin | 1111100101100… |
… | …10101001010101 |
3 | 100010001001100121 |
4 | 13302302221111 |
5 | 231433131112 |
6 | 20550311541 |
7 | 3145254241 |
oct | 762625125 |
9 | 303031317 |
10 | 130755157 |
11 | 67898315 |
12 | 379585b1 |
13 | 21121420 |
14 | 13519421 |
15 | b72c407 |
hex | 7cb2a55 |
130755157 has 4 divisors (see below), whose sum is σ = 140813260. Its totient is φ = 120697056.
The previous prime is 130755137. The next prime is 130755167. The reversal of 130755157 is 751557031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 751557031 = 443 ⋅1696517.
It can be written as a sum of positive squares in 2 ways, for example, as 49196196 + 81558961 = 7014^2 + 9031^2 .
It is a cyclic number.
It is not a de Polignac number, because 130755157 - 27 = 130755029 is a prime.
It is a super-2 number, since 2×1307551572 = 34193822164189298, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130755137) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5029032 + ... + 5029057.
It is an arithmetic number, because the mean of its divisors is an integer number (35203315).
Almost surely, 2130755157 is an apocalyptic number.
It is an amenable number.
130755157 is a deficient number, since it is larger than the sum of its proper divisors (10058103).
130755157 is a wasteful number, since it uses less digits than its factorization.
130755157 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10058102.
The product of its (nonzero) digits is 18375, while the sum is 34.
The square root of 130755157 is about 11434.8221236712. The cubic root of 130755157 is about 507.5586989948.
The spelling of 130755157 in words is "one hundred thirty million, seven hundred fifty-five thousand, one hundred fifty-seven".
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