Base | Representation |
---|---|
bin | 100001100101011010… |
… | …0011100011000101111 |
3 | 20220011022200111100010 |
4 | 1003022310130120233 |
5 | 2140201242102002 |
6 | 53044341304303 |
7 | 5132153526114 |
oct | 1031264343057 |
9 | 226138614303 |
10 | 72122222127 |
11 | 28650128a5a |
12 | 11b89705093 |
13 | 6a550161a7 |
14 | 36c280890b |
15 | 1d21ab746c |
hex | 10cad1c62f |
72122222127 has 8 divisors (see below), whose sum is σ = 96775466416. Its totient is φ = 47775229632.
The previous prime is 72122222119. The next prime is 72122222153.
72122222127 is nontrivially palindromic in base 10.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 72122222127 - 23 = 72122222119 is a prime.
It is a super-2 number, since 2×721222221272 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 72122222094 and 72122222103.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72122222177) 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, 76562398 + ... + 76563339.
It is an arithmetic number, because the mean of its divisors is an integer number (12096933302).
Almost surely, 272122222127 is an apocalyptic number.
72122222127 is a deficient number, since it is larger than the sum of its proper divisors (24653244289).
72122222127 is a wasteful number, since it uses less digits than its factorization.
72122222127 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 153125897.
The product of its digits is 6272, while the sum is 30.
The spelling of 72122222127 in words is "seventy-two billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-seven".
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