Base | Representation |
---|---|
bin | 1101100010011011… |
… | …11101010001100101 |
3 | 200202112101110221110 |
4 | 12301031331101211 |
5 | 104341124142011 |
6 | 3201114335233 |
7 | 345053424111 |
oct | 66115752145 |
9 | 20675343843 |
10 | 7268193381 |
11 | 309a784299 |
12 | 14aa12a519 |
13 | 8baa48657 |
14 | 4cd410741 |
15 | 2c8143ba6 |
hex | 1b137d465 |
7268193381 has 32 divisors (see below), whose sum is σ = 10105446400. Its totient is φ = 4641624000.
The previous prime is 7268193349. The next prime is 7268193397. The reversal of 7268193381 is 1833918627.
It is not a de Polignac number, because 7268193381 - 25 = 7268193349 is a prime.
It is a super-2 number, since 2×72681933812 (a number of 21 digits) 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 7268193381.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7268193281) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4900266 + ... + 4901748.
It is an arithmetic number, because the mean of its divisors is an integer number (315795200).
Almost surely, 27268193381 is an apocalyptic number.
It is an amenable number.
7268193381 is a deficient number, since it is larger than the sum of its proper divisors (2837253019).
7268193381 is a wasteful number, since it uses less digits than its factorization.
7268193381 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2017.
The product of its digits is 435456, while the sum is 48.
The square root of 7268193381 is about 85253.7001015205. The cubic root of 7268193381 is about 1937.0559181796.
The spelling of 7268193381 in words is "seven billion, two hundred sixty-eight million, one hundred ninety-three thousand, three hundred eighty-one".
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