Base | Representation |
---|---|
bin | 100000001001111110… |
… | …0000111001100000001 |
3 | 20121020111021202110201 |
4 | 1000103330013030001 |
5 | 2112410311030141 |
6 | 51420054525201 |
7 | 4663136221522 |
oct | 1002374071401 |
9 | 217214252421 |
10 | 69054001921 |
11 | 27316202783 |
12 | 11472066801 |
13 | 6686467288 |
14 | 34b1124849 |
15 | 1be254a031 |
hex | 1013f07301 |
69054001921 has 16 divisors (see below), whose sum is σ = 73629174528. Its totient is φ = 64536192000.
The previous prime is 69054001879. The next prime is 69054001937. The reversal of 69054001921 is 12910045096.
It is a de Polignac number, because none of the positive numbers 2k-69054001921 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (69054002921) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10883476 + ... + 10889818.
It is an arithmetic number, because the mean of its divisors is an integer number (4601823408).
Almost surely, 269054001921 is an apocalyptic number.
It is an amenable number.
69054001921 is a deficient number, since it is larger than the sum of its proper divisors (4575172607).
69054001921 is a wasteful number, since it uses less digits than its factorization.
69054001921 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10752.
The product of its (nonzero) digits is 19440, while the sum is 37.
The spelling of 69054001921 in words is "sixty-nine billion, fifty-four million, one thousand, nine hundred twenty-one".
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