Base | Representation |
---|---|
bin | 100000001010101010… |
… | …0011010010110000000 |
3 | 20121022002211202101000 |
4 | 1000111110122112000 |
5 | 2112432222232211 |
6 | 51422243012000 |
7 | 4663540036056 |
oct | 1002524322600 |
9 | 217262752330 |
10 | 69077149056 |
11 | 27328282543 |
12 | 1147996a000 |
13 | 668b1accc6 |
14 | 34b422c1d6 |
15 | 1be45bd656 |
hex | 101551a580 |
69077149056 has 128 divisors (see below), whose sum is σ = 214603920000. Its totient is φ = 21813815808.
The previous prime is 69077149051. The next prime is 69077149081. The reversal of 69077149056 is 65094177096.
It is a tau number, because it is divible by the number of its divisors (128).
It is a super-2 number, since 2×690771490562 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a junction number, because it is equal to n+sod(n) for n = 69077148993 and 69077149011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69077149051) 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, 460326 + ... + 591653.
It is an arithmetic number, because the mean of its divisors is an integer number (1676593125).
Almost surely, 269077149056 is an apocalyptic number.
It is an amenable number.
69077149056 is an abundant number, since it is smaller than the sum of its proper divisors (145526770944).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69077149056 is a wasteful number, since it uses less digits than its factorization.
69077149056 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1052021 (or 1052003 counting only the distinct ones).
The product of its (nonzero) digits is 2857680, while the sum is 54.
The spelling of 69077149056 in words is "sixty-nine billion, seventy-seven million, one hundred forty-nine thousand, fifty-six".
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