Base | Representation |
---|---|
bin | 1000000100011… |
… | …10100110100000 |
3 | 11201101011021200 |
4 | 10002032212200 |
5 | 114312133320 |
6 | 10414521200 |
7 | 1451244366 |
oct | 402164640 |
9 | 151334250 |
10 | 67692960 |
11 | 352357a5 |
12 | 1a806200 |
13 | 1104170a |
14 | 8dc1636 |
15 | 5e22290 |
hex | 408e9a0 |
67692960 has 144 divisors (see below), whose sum is σ = 239115240. Its totient is φ = 17418240.
The previous prime is 67692941. The next prime is 67693007. The reversal of 67692960 is 6929676.
It can be written as a sum of positive squares in 4 ways, for example, as 61402896 + 6290064 = 7836^2 + 2508^2 .
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40950 + ... + 42570.
It is a vampire number, since it can be written as 6960 ⋅ 9726 (with its own digits).
Almost surely, 267692960 is an apocalyptic number.
67692960 is a gapful number since it is divisible by the number (60) 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 67692960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119557620).
67692960 is an abundant number, since it is smaller than the sum of its proper divisors (171422280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67692960 is a wasteful number, since it uses less digits than its factorization.
67692960 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1671 (or 1660 counting only the distinct ones).
The product of its (nonzero) digits is 244944, while the sum is 45.
The square root of 67692960 is about 8227.5731537313. The cubic root of 67692960 is about 407.5502541307.
It can be divided in two parts, 676 and 92960, that added together give a square (93636 = 3062).
The spelling of 67692960 in words is "sixty-seven million, six hundred ninety-two thousand, nine hundred sixty".
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