Base | Representation |
---|---|
bin | 1000100110110… |
… | …11100010110011 |
3 | 12000212021002200 |
4 | 10103123202303 |
5 | 121440434134 |
6 | 11055314243 |
7 | 1534465452 |
oct | 423334263 |
9 | 160767080 |
10 | 72202419 |
11 | 37835823 |
12 | 2021b983 |
13 | 11c60133 |
14 | 9836b99 |
15 | 6513499 |
hex | 44db8b3 |
72202419 has 6 divisors (see below), whose sum is σ = 104292396. Its totient is φ = 48134940.
The previous prime is 72202397. The next prime is 72202457. The reversal of 72202419 is 91420227.
It is not a de Polignac number, because 72202419 - 211 = 72200371 is a prime.
It is a super-2 number, since 2×722024192 = 10426378618903122, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 72202392 and 72202401.
It is not an unprimeable number, because it can be changed into a prime (72202469) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4011237 + ... + 4011254.
It is an arithmetic number, because the mean of its divisors is an integer number (17382066).
Almost surely, 272202419 is an apocalyptic number.
72202419 is a deficient number, since it is larger than the sum of its proper divisors (32089977).
72202419 is a wasteful number, since it uses less digits than its factorization.
72202419 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8022497 (or 8022494 counting only the distinct ones).
The product of its (nonzero) digits is 2016, while the sum is 27.
The square root of 72202419 is about 8497.2006566869. The cubic root of 72202419 is about 416.4062595432.
The spelling of 72202419 in words is "seventy-two million, two hundred two thousand, four hundred nineteen".
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