Base | Representation |
---|---|
bin | 100000010110101101… |
… | …1100000011001001110 |
3 | 20122100022000010212000 |
4 | 1000231123200121032 |
5 | 2114244301141110 |
6 | 51530333053130 |
7 | 5006551245144 |
oct | 1005533403116 |
9 | 218308003760 |
10 | 69481662030 |
11 | 27515650090 |
12 | 115713271a6 |
13 | 6723c417b1 |
14 | 3511c49594 |
15 | 1c19d741c0 |
hex | 102d6e064e |
69481662030 has 128 divisors (see below), whose sum is σ = 214018536960. Its totient is φ = 15853201920.
The previous prime is 69481662023. The next prime is 69481662031. The reversal of 69481662030 is 3026618496.
69481662030 is a `hidden beast` number, since 6 + 9 + 4 + 8 + 16 + 620 + 3 + 0 = 666.
It is a super-2 number, since 2×694816620302 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69481662031) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 637584 + ... + 738563.
It is an arithmetic number, because the mean of its divisors is an integer number (1672019820).
Almost surely, 269481662030 is an apocalyptic number.
69481662030 is an abundant number, since it is smaller than the sum of its proper divisors (144536874930).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69481662030 is a wasteful number, since it uses less digits than its factorization.
69481662030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1376191 (or 1376185 counting only the distinct ones).
The product of its (nonzero) digits is 373248, while the sum is 45.
The spelling of 69481662030 in words is "sixty-nine billion, four hundred eighty-one million, six hundred sixty-two thousand, thirty".
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