Base | Representation |
---|---|
bin | 1000001100101… |
… | …01110001010000 |
3 | 11210101220221020 |
4 | 10012111301100 |
5 | 120101132041 |
6 | 10453555440 |
7 | 1463354145 |
oct | 406256120 |
9 | 153356836 |
10 | 68770896 |
11 | 35901657 |
12 | 1b045b80 |
13 | 1132b24c |
14 | 91c23cc |
15 | 6086866 |
hex | 4195c50 |
68770896 has 80 divisors (see below), whose sum is σ = 185464320. Its totient is φ = 21934080.
The previous prime is 68770879. The next prime is 68770903. The reversal of 68770896 is 69807786.
It is a happy number.
It is a super-2 number, since 2×687708962 = 9458872273285632, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167940 + ... + 168348.
It is an arithmetic number, because the mean of its divisors is an integer number (2318304).
Almost surely, 268770896 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68770896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92732160).
68770896 is an abundant number, since it is smaller than the sum of its proper divisors (116693424).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68770896 is a wasteful number, since it uses less digits than its factorization.
68770896 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 564 (or 558 counting only the distinct ones).
The product of its (nonzero) digits is 1016064, while the sum is 51.
The square root of 68770896 is about 8292.8219563668. The cubic root of 68770896 is about 409.7021354288.
The spelling of 68770896 in words is "sixty-eight million, seven hundred seventy thousand, eight hundred ninety-six".
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