Base | Representation |
---|---|
bin | 1111100101100… |
… | …10111010010101 |
3 | 100010001002211220 |
4 | 13302302322111 |
5 | 231433144440 |
6 | 20550320553 |
7 | 3145260354 |
oct | 762627225 |
9 | 303032756 |
10 | 130756245 |
11 | 67899114 |
12 | 37959159 |
13 | 21121a79 |
14 | 1351999b |
15 | b72c8d0 |
hex | 7cb2e95 |
130756245 has 16 divisors (see below), whose sum is σ = 212641152. Its totient is φ = 68592960.
The previous prime is 130756217. The next prime is 130756253. The reversal of 130756245 is 542657031.
It is not a de Polignac number, because 130756245 - 26 = 130756181 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70537 + ... + 72366.
It is an arithmetic number, because the mean of its divisors is an integer number (13290072).
Almost surely, 2130756245 is an apocalyptic number.
130756245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
130756245 is a deficient number, since it is larger than the sum of its proper divisors (81884907).
130756245 is a wasteful number, since it uses less digits than its factorization.
130756245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 142972.
The product of its (nonzero) digits is 25200, while the sum is 33.
The square root of 130756245 is about 11434.8696975523. The cubic root of 130756245 is about 507.5601067718.
The spelling of 130756245 in words is "one hundred thirty million, seven hundred fifty-six thousand, two hundred forty-five".
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