Base | Representation |
---|---|
bin | 100000100010100110… |
… | …1100000000010000000 |
3 | 20200101002202111211100 |
4 | 1001011031200002000 |
5 | 2121103421044322 |
6 | 52034104414400 |
7 | 5022464446065 |
oct | 1010515400200 |
9 | 220332674740 |
10 | 69880643712 |
11 | 276aa88aa10 |
12 | 11662a77400 |
13 | 67887b7729 |
14 | 354cc26c6c |
15 | 1c3edd5dac |
hex | 1045360080 |
69880643712 has 96 divisors (see below), whose sum is σ = 219369674160. Its totient is φ = 21175948800.
The previous prime is 69880643699. The next prime is 69880643719. The reversal of 69880643712 is 21734608896.
It is a tau number, because it is divible by the number of its divisors (96).
It is not an unprimeable number, because it can be changed into a prime (69880643719) 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, 2744614 + ... + 2769957.
Almost surely, 269880643712 is an apocalyptic number.
It is an amenable number.
69880643712 is an abundant number, since it is smaller than the sum of its proper divisors (149489030448).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69880643712 is a wasteful number, since it uses less digits than its factorization.
69880643712 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5514602 (or 5514587 counting only the distinct ones).
The product of its (nonzero) digits is 3483648, while the sum is 54.
The spelling of 69880643712 in words is "sixty-nine billion, eight hundred eighty million, six hundred forty-three thousand, seven hundred twelve".
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