Base | Representation |
---|---|
bin | 100000110010111110… |
… | …1001100110101001110 |
3 | 20201210101111122220022 |
4 | 1001211331030311032 |
5 | 2123220041101034 |
6 | 52204411422142 |
7 | 5042215166024 |
oct | 1014575146516 |
9 | 221711448808 |
10 | 70430018894 |
11 | 27961a00694 |
12 | 11796a54952 |
13 | 68455696c1 |
14 | 35a1b92714 |
15 | 1c73253b2e |
hex | 1065f4cd4e |
70430018894 has 16 divisors (see below), whose sum is σ = 105887606400. Its totient is φ = 35134186104.
The previous prime is 70430018891. The next prime is 70430018909. The reversal of 70430018894 is 49881003407.
It is a super-2 number, since 2×704300188942 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70430018891) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6480437 + ... + 6491295.
It is an arithmetic number, because the mean of its divisors is an integer number (6617975400).
Almost surely, 270430018894 is an apocalyptic number.
70430018894 is a deficient number, since it is larger than the sum of its proper divisors (35457587506).
70430018894 is a wasteful number, since it uses less digits than its factorization.
70430018894 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18007.
The product of its (nonzero) digits is 193536, while the sum is 44.
The spelling of 70430018894 in words is "seventy billion, four hundred thirty million, eighteen thousand, eight hundred ninety-four".
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