Base | Representation |
---|---|
bin | 1001100100000… |
… | …00101100011100 |
3 | 12120221112122200 |
4 | 10302000230130 |
5 | 131014001113 |
6 | 11543211500 |
7 | 1662564240 |
oct | 462005434 |
9 | 176845580 |
10 | 80218908 |
11 | 41310720 |
12 | 22a46b90 |
13 | 13808c13 |
14 | a922420 |
15 | 7098873 |
hex | 4c80b1c |
80218908 has 144 divisors (see below), whose sum is σ = 259074816. Its totient is φ = 20321280.
The previous prime is 80218861. The next prime is 80218921. The reversal of 80218908 is 80981208.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118860 + ... + 119532.
Almost surely, 280218908 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 80218908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129537408).
80218908 is an abundant number, since it is smaller than the sum of its proper divisors (178855908).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80218908 is a wasteful number, since it uses less digits than its factorization.
80218908 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 744 (or 739 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 36.
The square root of 80218908 is about 8956.5008792497. The cubic root of 80218908 is about 431.2795992286.
The spelling of 80218908 in words is "eighty million, two hundred eighteen thousand, nine hundred eight".
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