Base | Representation |
---|---|
bin | 100000001101111011… |
… | …1110001010100001000 |
3 | 20121120202200220022021 |
4 | 1000123313301110020 |
5 | 2113143343101410 |
6 | 51441211134224 |
7 | 4666343326546 |
oct | 1003367612410 |
9 | 217522626267 |
10 | 69187081480 |
11 | 27384338390 |
12 | 114aa744374 |
13 | 66a7bc068a |
14 | 34c4a86d96 |
15 | 1bee085eda |
hex | 101bdf1508 |
69187081480 has 32 divisors (see below), whose sum is σ = 169822837440. Its totient is φ = 25158938560.
The previous prime is 69187081427. The next prime is 69187081507. The reversal of 69187081480 is 8418078196.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78621244 + ... + 78622123.
It is an arithmetic number, because the mean of its divisors is an integer number (5306963670).
Almost surely, 269187081480 is an apocalyptic number.
It is an amenable number.
69187081480 is an abundant number, since it is smaller than the sum of its proper divisors (100635755960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69187081480 is a wasteful number, since it uses less digits than its factorization.
69187081480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 157243389 (or 157243385 counting only the distinct ones).
The product of its (nonzero) digits is 774144, while the sum is 52.
The spelling of 69187081480 in words is "sixty-nine billion, one hundred eighty-seven million, eighty-one thousand, four hundred eighty".
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