Base | Representation |
---|---|
bin | 1000010110100… |
… | …10111001010101 |
3 | 11212211220202110 |
4 | 10023102321111 |
5 | 120414213340 |
6 | 10541501233 |
7 | 1510404156 |
oct | 413227125 |
9 | 155756673 |
10 | 70069845 |
11 | 3660956a |
12 | 1b571819 |
13 | 11694561 |
14 | 943d92d |
15 | 6241680 |
hex | 42d2e55 |
70069845 has 32 divisors (see below), whose sum is σ = 118444032. Its totient is φ = 35300672.
The previous prime is 70069843. The next prime is 70069847. The reversal of 70069845 is 54896007.
It is an interprime number because it is at equal distance from previous prime (70069843) and next prime (70069847).
It is a cyclic number.
It is not a de Polignac number, because 70069845 - 21 = 70069843 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70069841) 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 31 ways as a sum of consecutive naturals, for example, 27412 + ... + 29858.
It is an arithmetic number, because the mean of its divisors is an integer number (3701376).
Almost surely, 270069845 is an apocalyptic number.
It is an amenable number.
70069845 is a deficient number, since it is larger than the sum of its proper divisors (48374187).
70069845 is a wasteful number, since it uses less digits than its factorization.
70069845 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2561.
The product of its (nonzero) digits is 60480, while the sum is 39.
The square root of 70069845 is about 8370.7732617722. The cubic root of 70069845 is about 412.2655564032.
The spelling of 70069845 in words is "seventy million, sixty-nine thousand, eight hundred forty-five".
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