Base | Representation |
---|---|
bin | 1000010010001… |
… | …01000101001101 |
3 | 11211202101221200 |
4 | 10021011011031 |
5 | 120242121343 |
6 | 10521220113 |
7 | 1502434521 |
oct | 411050515 |
9 | 154671850 |
10 | 69488973 |
11 | 36252104 |
12 | 1b331639 |
13 | 11520048 |
14 | 932bd81 |
15 | 61794d3 |
hex | 424514d |
69488973 has 12 divisors (see below), whose sum is σ = 102821628. Its totient is φ = 45195840.
The previous prime is 69488971. The next prime is 69488999. The reversal of 69488973 is 37988496.
It can be written as a sum of positive squares in 2 ways, for example, as 5280804 + 64208169 = 2298^2 + 8013^2 .
It is not a de Polignac number, because 69488973 - 21 = 69488971 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69488971) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93790 + ... + 94527.
It is an arithmetic number, because the mean of its divisors is an integer number (8568469).
Almost surely, 269488973 is an apocalyptic number.
It is an amenable number.
69488973 is a deficient number, since it is larger than the sum of its proper divisors (33332655).
69488973 is a wasteful number, since it uses less digits than its factorization.
69488973 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 188364 (or 188361 counting only the distinct ones).
The product of its digits is 2612736, while the sum is 54.
The square root of 69488973 is about 8336.0046185208. The cubic root of 69488973 is about 411.1231804400.
The spelling of 69488973 in words is "sixty-nine million, four hundred eighty-eight thousand, nine hundred seventy-three".
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