Base | Representation |
---|---|
bin | 100000010100010111… |
… | …0000100111111110101 |
3 | 20122010210022122010200 |
4 | 1000220232010333311 |
5 | 2114114034110334 |
6 | 51514431311113 |
7 | 5004601513224 |
oct | 1005056047765 |
9 | 218123278120 |
10 | 69402644469 |
11 | 27484a90014 |
12 | 1154a97b499 |
13 | 6710766642 |
14 | 350555acbb |
15 | 1c12e66799 |
hex | 1028b84ff5 |
69402644469 has 12 divisors (see below), whose sum is σ = 100292127936. Its totient is φ = 46248184872.
The previous prime is 69402644429. The next prime is 69402644471. The reversal of 69402644469 is 96444620496.
It is a happy number.
It is not a de Polignac number, because 69402644469 - 219 = 69402120181 is a prime.
It is a super-2 number, since 2×694026444692 (a number of 22 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69402644429) 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, 1665339 + ... + 1706504.
It is an arithmetic number, because the mean of its divisors is an integer number (8357677328).
Almost surely, 269402644469 is an apocalyptic number.
It is an amenable number.
69402644469 is a deficient number, since it is larger than the sum of its proper divisors (30889483467).
69402644469 is a wasteful number, since it uses less digits than its factorization.
69402644469 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3374136 (or 3374133 counting only the distinct ones).
The product of its (nonzero) digits is 8957952, while the sum is 54.
The spelling of 69402644469 in words is "sixty-nine billion, four hundred two million, six hundred forty-four thousand, four hundred sixty-nine".
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