Base | Representation |
---|---|
bin | 1000010110110… |
… | …10100000011111 |
3 | 11212220111112012 |
4 | 10023122200133 |
5 | 120421213043 |
6 | 10542301435 |
7 | 1510564106 |
oct | 413324037 |
9 | 155814465 |
10 | 70101023 |
11 | 3662aa33 |
12 | 1b58787b |
13 | 116a57c5 |
14 | 944b03d |
15 | 624aa18 |
hex | 42da81f |
70101023 has 4 divisors (see below), whose sum is σ = 70257600. Its totient is φ = 69944448.
The previous prime is 70101001. The next prime is 70101041. The reversal of 70101023 is 32010107.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32010107 = 367 ⋅87221.
It is a cyclic number.
It is not a de Polignac number, because 70101023 - 26 = 70100959 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 70100989 and 70101007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70109023) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77615 + ... + 78512.
It is an arithmetic number, because the mean of its divisors is an integer number (17564400).
Almost surely, 270101023 is an apocalyptic number.
70101023 is a deficient number, since it is larger than the sum of its proper divisors (156577).
70101023 is a wasteful number, since it uses less digits than its factorization.
70101023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 156576.
The product of its (nonzero) digits is 42, while the sum is 14.
The square root of 70101023 is about 8372.6353676725. The cubic root of 70101023 is about 412.3266940179.
The spelling of 70101023 in words is "seventy million, one hundred one thousand, twenty-three".
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