Base | Representation |
---|---|
bin | 1111100001000… |
… | …00000010100101 |
3 | 100001220112122000 |
4 | 13300200002211 |
5 | 231304422121 |
6 | 20525355513 |
7 | 3140203440 |
oct | 760400245 |
9 | 301815560 |
10 | 130154661 |
11 | 6751813a |
12 | 37708b99 |
13 | 20c70cc0 |
14 | 13400657 |
15 | b65e526 |
hex | 7c200a5 |
130154661 has 32 divisors (see below), whose sum is σ = 237323520. Its totient is φ = 68651712.
The previous prime is 130154653. The next prime is 130154671. The reversal of 130154661 is 166451031.
It is not a de Polignac number, because 130154661 - 23 = 130154653 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130154671) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24030 + ... + 28943.
It is an arithmetic number, because the mean of its divisors is an integer number (7416360).
Almost surely, 2130154661 is an apocalyptic number.
It is an amenable number.
130154661 is a deficient number, since it is larger than the sum of its proper divisors (107168859).
130154661 is a wasteful number, since it uses less digits than its factorization.
130154661 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 53002 (or 52996 counting only the distinct ones).
The product of its (nonzero) digits is 2160, while the sum is 27.
The square root of 130154661 is about 11408.5345684711. The cubic root of 130154661 is about 506.7805149192.
The spelling of 130154661 in words is "one hundred thirty million, one hundred fifty-four thousand, six hundred sixty-one".
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