Base | Representation |
---|---|
bin | 1001100100000… |
… | …00111011111101 |
3 | 12120221121000110 |
4 | 10302000323331 |
5 | 131014014101 |
6 | 11543220233 |
7 | 1662600156 |
oct | 462007375 |
9 | 176847013 |
10 | 80219901 |
11 | 41311443 |
12 | 22a47679 |
13 | 138094c8 |
14 | a92292d |
15 | 7098cd6 |
hex | 4c80efd |
80219901 has 8 divisors (see below), whose sum is σ = 107002080. Its totient is φ = 53458832.
The previous prime is 80219891. The next prime is 80219911. The reversal of 80219901 is 10991208.
It is an interprime number because it is at equal distance from previous prime (80219891) and next prime (80219911).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 80219901 - 25 = 80219869 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80219911) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9526 + ... + 15848.
It is an arithmetic number, because the mean of its divisors is an integer number (13375260).
Almost surely, 280219901 is an apocalyptic number.
It is an amenable number.
80219901 is a deficient number, since it is larger than the sum of its proper divisors (26782179).
80219901 is a wasteful number, since it uses less digits than its factorization.
80219901 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10555.
The product of its (nonzero) digits is 1296, while the sum is 30.
The square root of 80219901 is about 8956.5563136732. The cubic root of 80219901 is about 431.2813787712.
The spelling of 80219901 in words is "eighty million, two hundred nineteen thousand, nine hundred one".
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