Base | Representation |
---|---|
bin | 100000010101001100… |
… | …0111000001100101010 |
3 | 20122012202000000202220 |
4 | 1000222120320030222 |
5 | 2114143221011300 |
6 | 51521311334510 |
7 | 5005361500122 |
oct | 1005230701452 |
9 | 218182000686 |
10 | 69430641450 |
11 | 27499872615 |
12 | 11558221436 |
13 | 67164b99c1 |
14 | 3509167c82 |
15 | 1c15646da0 |
hex | 102a63832a |
69430641450 has 48 divisors (see below), whose sum is σ = 178125518880. Its totient is φ = 17876393920.
The previous prime is 69430641437. The next prime is 69430641481. The reversal of 69430641450 is 5414603496.
It is a happy number.
It is a super-2 number, since 2×694306414502 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7976184 + ... + 7984883.
It is an arithmetic number, because the mean of its divisors is an integer number (3710948310).
Almost surely, 269430641450 is an apocalyptic number.
69430641450 is an abundant number, since it is smaller than the sum of its proper divisors (108694877430).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69430641450 is a wasteful number, since it uses less digits than its factorization.
69430641450 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15961111 (or 15961106 counting only the distinct ones).
The product of its (nonzero) digits is 311040, while the sum is 42.
The spelling of 69430641450 in words is "sixty-nine billion, four hundred thirty million, six hundred forty-one thousand, four hundred fifty".
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