Base | Representation |
---|---|
bin | 1000001100101… |
… | …01011001111000 |
3 | 11210101211212211 |
4 | 10012111121320 |
5 | 120101110100 |
6 | 10453544504 |
7 | 1463346610 |
oct | 406253170 |
9 | 153354784 |
10 | 68769400 |
11 | 35900517 |
12 | 1b045134 |
13 | 1132a66b |
14 | 91c1a40 |
15 | 60861ba |
hex | 4195678 |
68769400 has 48 divisors (see below), whose sum is σ = 182733840. Its totient is φ = 23577600.
The previous prime is 68769391. The next prime is 68769443. The reversal of 68769400 is 496786.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (40).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23161 + ... + 25960.
It is an arithmetic number, because the mean of its divisors is an integer number (3806955).
Almost surely, 268769400 is an apocalyptic number.
It is an amenable number.
68769400 is an abundant number, since it is smaller than the sum of its proper divisors (113964440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68769400 is a wasteful number, since it uses less digits than its factorization.
68769400 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49144 (or 49135 counting only the distinct ones).
The product of its (nonzero) digits is 72576, while the sum is 40.
The square root of 68769400 is about 8292.7317573885. The cubic root of 68769400 is about 409.6991646041.
It can be divided in two parts, 68769 and 400, that added together give a square (69169 = 2632).
The spelling of 68769400 in words is "sixty-eight million, seven hundred sixty-nine thousand, four hundred".
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