Base | Representation |
---|---|
bin | 100000110100110000… |
… | …1111010101111111111 |
3 | 20201221120022210022201 |
4 | 1001221201322233333 |
5 | 2123330413211212 |
6 | 52214352452331 |
7 | 5043543623356 |
oct | 1015141725777 |
9 | 221846283281 |
10 | 70489975807 |
11 | 27992832159 |
12 | 117b2b4a0a7 |
13 | 6854accb74 |
14 | 35a9b1c99d |
15 | 1c78648b57 |
hex | 106987abff |
70489975807 has 4 divisors (see below), whose sum is σ = 70770812616. Its totient is φ = 70209139000.
The previous prime is 70489975799. The next prime is 70489975837. The reversal of 70489975807 is 70857998407.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70857998407 = 7 ⋅10122571201.
It is a cyclic number.
It is not a de Polignac number, because 70489975807 - 23 = 70489975799 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70489975837) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140418028 + ... + 140418529.
It is an arithmetic number, because the mean of its divisors is an integer number (17692703154).
Almost surely, 270489975807 is an apocalyptic number.
70489975807 is a deficient number, since it is larger than the sum of its proper divisors (280836809).
70489975807 is a wasteful number, since it uses less digits than its factorization.
70489975807 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 280836808.
The product of its (nonzero) digits is 35562240, while the sum is 64.
The spelling of 70489975807 in words is "seventy billion, four hundred eighty-nine million, nine hundred seventy-five thousand, eight hundred seven".
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