Base | Representation |
---|---|
bin | 1000001000000… |
… | …00101101110100 |
3 | 11202020220110020 |
4 | 10010000231310 |
5 | 114422112442 |
6 | 10432525140 |
7 | 1455232200 |
oct | 404005564 |
9 | 152226406 |
10 | 68160372 |
11 | 35524995 |
12 | 1a9b07b0 |
13 | 111763a7 |
14 | 90a3b00 |
15 | 5eb59ec |
hex | 4100b74 |
68160372 has 72 divisors (see below), whose sum is σ = 194775840. Its totient is φ = 18446400.
The previous prime is 68160359. The next prime is 68160403. The reversal of 68160372 is 27306186.
It is a super-2 number, since 2×681603722 = 9291672622356768, 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 23 ways as a sum of consecutive naturals, for example, 8122 + ... + 14222.
It is an arithmetic number, because the mean of its divisors is an integer number (2705220).
Almost surely, 268160372 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 68160372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97387920).
68160372 is an abundant number, since it is smaller than the sum of its proper divisors (126615468).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68160372 is a wasteful number, since it uses less digits than its factorization.
68160372 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6141 (or 6132 counting only the distinct ones).
The product of its (nonzero) digits is 12096, while the sum is 33.
The square root of 68160372 is about 8255.9295055130. The cubic root of 68160372 is about 408.4861323844.
The spelling of 68160372 in words is "sixty-eight million, one hundred sixty thousand, three hundred seventy-two".
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