Base | Representation |
---|---|
bin | 10110101010100… |
… | …10101100001101 |
3 | 111020202122122022 |
4 | 23111102230031 |
5 | 342133142312 |
6 | 30511055525 |
7 | 4466041442 |
oct | 1325225415 |
9 | 436678568 |
10 | 190130957 |
11 | 98362225 |
12 | 538115a5 |
13 | 30510233 |
14 | 1b3739c9 |
15 | 11a5a172 |
hex | b552b0d |
190130957 has 2 divisors, whose sum is σ = 190130958. Its totient is φ = 190130956.
The previous prime is 190130951. The next prime is 190130977. The reversal of 190130957 is 759031091.
190130957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 189172516 + 958441 = 13754^2 + 979^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-190130957 is a prime.
It is a super-2 number, since 2×1901309572 = 72299561619471698, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (190130951) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95065478 + 95065479.
It is an arithmetic number, because the mean of its divisors is an integer number (95065479).
Almost surely, 2190130957 is an apocalyptic number.
It is an amenable number.
190130957 is a deficient number, since it is larger than the sum of its proper divisors (1).
190130957 is an equidigital number, since it uses as much as digits as its factorization.
190130957 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 8505, while the sum is 35.
The square root of 190130957 is about 13788.7982435019. The cubic root of 190130957 is about 575.0217579668.
The spelling of 190130957 in words is "one hundred ninety million, one hundred thirty thousand, nine hundred fifty-seven".
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