Base | Representation |
---|---|
bin | 1000101100001… |
… | …00111011011011 |
3 | 12002011111210222 |
4 | 10112010323123 |
5 | 122130134334 |
6 | 11122230255 |
7 | 1543415264 |
oct | 426047333 |
9 | 162144728 |
10 | 72896219 |
11 | 3816a010 |
12 | 204b538b |
13 | 12143b76 |
14 | 997796b |
15 | 65edd2e |
hex | 4584edb |
72896219 has 8 divisors (see below), whose sum is σ = 79635312. Its totient is φ = 66175840.
The previous prime is 72896209. The next prime is 72896231. The reversal of 72896219 is 91269827.
It is a happy number.
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 72896219 - 212 = 72892123 is a prime.
It is a super-2 number, since 2×728962192 = 10627717488991922, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 72896219.
It is not an unprimeable number, because it can be changed into a prime (72896209) 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, 4217 + ... + 12789.
It is an arithmetic number, because the mean of its divisors is an integer number (9954414).
Almost surely, 272896219 is an apocalyptic number.
72896219 is a deficient number, since it is larger than the sum of its proper divisors (6739093).
72896219 is a wasteful number, since it uses less digits than its factorization.
72896219 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9357.
The product of its digits is 108864, while the sum is 44.
The square root of 72896219 is about 8537.9282615866. The cubic root of 72896219 is about 417.7357727409.
The spelling of 72896219 in words is "seventy-two million, eight hundred ninety-six thousand, two hundred nineteen".
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