Base | Representation |
---|---|
bin | 10101100011011010… |
… | …100110000001011001 |
3 | 2012201212011121222202 |
4 | 111203122212001121 |
5 | 334344021033340 |
6 | 14344233255545 |
7 | 1446333102116 |
oct | 254332460131 |
9 | 65655147882 |
10 | 23142752345 |
11 | 98a6531409 |
12 | 459a5645b5 |
13 | 224a8211cb |
14 | 119784b90d |
15 | 906b0bc15 |
hex | 5636a6059 |
23142752345 has 16 divisors (see below), whose sum is σ = 27852748560. Its totient is φ = 18459961344.
The previous prime is 23142752323. The next prime is 23142752357. The reversal of 23142752345 is 54325724132.
It can be written as a sum of positive squares in 8 ways, for example, as 670343881 + 22472408464 = 25891^2 + 149908^2 .
It is a cyclic number.
It is not a de Polignac number, because 23142752345 - 28 = 23142752089 is a prime.
It is a super-2 number, since 2×231427523452 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 23142752299 and 23142752308.
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, 5906327 + ... + 5910243.
It is an arithmetic number, because the mean of its divisors is an integer number (1740796785).
Almost surely, 223142752345 is an apocalyptic number.
It is an amenable number.
23142752345 is a deficient number, since it is larger than the sum of its proper divisors (4709996215).
23142752345 is a wasteful number, since it uses less digits than its factorization.
23142752345 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7084.
The product of its digits is 201600, while the sum is 38.
The spelling of 23142752345 in words is "twenty-three billion, one hundred forty-two million, seven hundred fifty-two thousand, three hundred forty-five".
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