Base | Representation |
---|---|
bin | 100000001010101110… |
… | …1110011001000010000 |
3 | 20121022021110202222100 |
4 | 1000111131303020100 |
5 | 2112433340003442 |
6 | 51422411440400 |
7 | 4663566665340 |
oct | 1002535631020 |
9 | 217267422870 |
10 | 69079609872 |
11 | 27329703379 |
12 | 1147a756100 |
13 | 668b862100 |
14 | 34b46acd20 |
15 | 1be490784c |
hex | 1015773210 |
69079609872 has 720 divisors, whose sum is σ = 251327152128. Its totient is φ = 17322439680.
The previous prime is 69079609867. The next prime is 69079609933. The reversal of 69079609872 is 27890697096.
It is a Harshad number since it is a multiple of its sum of digits (63).
It is an unprimeable number.
It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 543933873 + ... + 543933999.
Almost surely, 269079609872 is an apocalyptic number.
69079609872 is a gapful number since it is divisible by the number (62) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 69079609872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125663576064).
69079609872 is an abundant number, since it is smaller than the sum of its proper divisors (182247542256).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69079609872 is a wasteful number, since it uses less digits than its factorization.
69079609872 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 308 (or 286 counting only the distinct ones).
The product of its (nonzero) digits is 20575296, while the sum is 63.
The spelling of 69079609872 in words is "sixty-nine billion, seventy-nine million, six hundred nine thousand, eight hundred seventy-two".
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