Base | Representation |
---|---|
bin | 100000101011110101… |
… | …0001010011001110101 |
3 | 20201011200010220210002 |
4 | 1001113222022121311 |
5 | 2122222134202224 |
6 | 52124522241045 |
7 | 5033243256431 |
oct | 1012752123165 |
9 | 221150126702 |
10 | 70190147189 |
11 | 27849565508 |
12 | 1172a656185 |
13 | 6807962096 |
14 | 357bd919c1 |
15 | 1c5c1709ae |
hex | 1057a8a675 |
70190147189 has 4 divisors (see below), whose sum is σ = 71683554624. Its totient is φ = 68696739756.
The previous prime is 70190147161. The next prime is 70190147191. The reversal of 70190147189 is 98174109107.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-70190147189 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 1493407387 = 70190147189 / (7 + 0 + 1 + 9 + 0 + 1 + 4 + 7 + 1 + 8 + 9).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70190147389) 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, 746703647 + ... + 746703740.
It is an arithmetic number, because the mean of its divisors is an integer number (17920888656).
Almost surely, 270190147189 is an apocalyptic number.
It is an amenable number.
70190147189 is a deficient number, since it is larger than the sum of its proper divisors (1493407435).
70190147189 is a wasteful number, since it uses less digits than its factorization.
70190147189 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1493407434.
The product of its (nonzero) digits is 127008, while the sum is 47.
The spelling of 70190147189 in words is "seventy billion, one hundred ninety million, one hundred forty-seven thousand, one hundred eighty-nine".
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