Base | Representation |
---|---|
bin | 1001100011010… |
… | …01111011110000 |
3 | 12120202210202210 |
4 | 10301221323300 |
5 | 131003010210 |
6 | 11541212120 |
7 | 1662025365 |
oct | 461517360 |
9 | 176683683 |
10 | 80125680 |
11 | 41257678 |
12 | 22a01040 |
13 | 137a565b |
14 | a8da46c |
15 | 707ae20 |
hex | 4c69ef0 |
80125680 has 40 divisors (see below), whose sum is σ = 248390352. Its totient is φ = 21366784.
The previous prime is 80125667. The next prime is 80125691. The reversal of 80125680 is 8652108.
It is a tau number, because it is divible by the number of its divisors (40).
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166689 + ... + 167168.
Almost surely, 280125680 is an apocalyptic number.
80125680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
80125680 is an abundant number, since it is smaller than the sum of its proper divisors (168264672).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80125680 is a wasteful number, since it uses less digits than its factorization.
80125680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 333873 (or 333867 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 30.
The square root of 80125680 is about 8951.2948783961. The cubic root of 80125680 is about 431.1124610752.
Adding to 80125680 its reverse (8652108), we get a palindrome (88777788).
The spelling of 80125680 in words is "eighty million, one hundred twenty-five thousand, six hundred eighty".
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