Base | Representation |
---|---|
bin | 101010001001011111… |
… | …0010101000011111101 |
3 | 22122121222111122011020 |
4 | 1110102332111003331 |
5 | 2440332214023201 |
6 | 105325252014353 |
7 | 6352662523344 |
oct | 1242276250375 |
9 | 278558448136 |
10 | 90512642301 |
11 | 35428032914 |
12 | 156606013b9 |
13 | 86c60b2813 |
14 | 4549024b5b |
15 | 254b390a36 |
hex | 1512f950fd |
90512642301 has 12 divisors (see below), whose sum is σ = 127369592352. Its totient is φ = 57165878664.
The previous prime is 90512642293. The next prime is 90512642303. The reversal of 90512642301 is 10324621509.
It is not a de Polignac number, because 90512642301 - 23 = 90512642293 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (90512642303) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41786841 + ... + 41789006.
It is an arithmetic number, because the mean of its divisors is an integer number (10614132696).
Almost surely, 290512642301 is an apocalyptic number.
It is an amenable number.
90512642301 is a deficient number, since it is larger than the sum of its proper divisors (36856950051).
90512642301 is a wasteful number, since it uses less digits than its factorization.
90512642301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 83575888 (or 83575869 counting only the distinct ones).
The product of its (nonzero) digits is 12960, while the sum is 33.
The spelling of 90512642301 in words is "ninety billion, five hundred twelve million, six hundred forty-two thousand, three hundred one".
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