Base | Representation |
---|---|
bin | 1001100101000… |
… | …10100001100000 |
3 | 12121012120201200 |
4 | 10302202201200 |
5 | 131032414342 |
6 | 11550201200 |
7 | 1664012226 |
oct | 462424140 |
9 | 177176650 |
10 | 80357472 |
11 | 413a5838 |
12 | 22ab3200 |
13 | 13857000 |
14 | a95ab16 |
15 | 70c494c |
hex | 4ca2860 |
80357472 has 144 divisors (see below), whose sum is σ = 249500160. Its totient is φ = 24530688.
The previous prime is 80357471. The next prime is 80357489. The reversal of 80357472 is 27475308.
80357472 is a `hidden beast` number, since 80 + 3 + 574 + 7 + 2 = 666.
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 (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80357471) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 632673 + ... + 632799.
It is an arithmetic number, because the mean of its divisors is an integer number (1732640).
Almost surely, 280357472 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 80357472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124750080).
80357472 is an abundant number, since it is smaller than the sum of its proper divisors (169142688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80357472 is a wasteful number, since it uses less digits than its factorization.
80357472 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 182 (or 145 counting only the distinct ones).
The product of its (nonzero) digits is 47040, while the sum is 36.
The square root of 80357472 is about 8964.2329287006. The cubic root of 80357472 is about 431.5277761762.
The spelling of 80357472 in words is "eighty million, three hundred fifty-seven thousand, four hundred seventy-two".
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