Base | Representation |
---|---|
bin | 1000000101001… |
… | …11011011110000 |
3 | 11201120022210210 |
4 | 10002213123300 |
5 | 114323412142 |
6 | 10421024120 |
7 | 1452150051 |
oct | 402473360 |
9 | 151508723 |
10 | 67794672 |
11 | 352a5160 |
12 | 1a855040 |
13 | 11078aba |
14 | 900a728 |
15 | 5e4249c |
hex | 40a76f0 |
67794672 has 40 divisors (see below), whose sum is σ = 191059200. Its totient is φ = 20543680.
The previous prime is 67794659. The next prime is 67794673. The reversal of 67794672 is 27649776.
It is a happy number.
It is a super-2 number, since 2×677946722 = 9192235103175168, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67794673) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63672 + ... + 64727.
It is an arithmetic number, because the mean of its divisors is an integer number (4776480).
Almost surely, 267794672 is an apocalyptic number.
It is an amenable number.
67794672 is an abundant number, since it is smaller than the sum of its proper divisors (123264528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67794672 is a wasteful number, since it uses less digits than its factorization.
67794672 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 128421 (or 128415 counting only the distinct ones).
The product of its digits is 889056, while the sum is 48.
The square root of 67794672 is about 8233.7520001516. The cubic root of 67794672 is about 407.7542734121.
Subtracting from 67794672 its reverse (27649776), we obtain a square (40144896 = 63362).
The spelling of 67794672 in words is "sixty-seven million, seven hundred ninety-four thousand, six hundred seventy-two".
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