Base | Representation |
---|---|
bin | 1011000100101011… |
… | …0101110100010101 |
3 | 21200011010000202021 |
4 | 2301022311310111 |
5 | 22041414042414 |
6 | 1210541013141 |
7 | 133442026525 |
oct | 26112656425 |
9 | 7604100667 |
10 | 2972409109 |
11 | 1295935a5a |
12 | 6ab5541b1 |
13 | 384a73c77 |
14 | 202aa3685 |
15 | 125e43c24 |
hex | b12b5d15 |
2972409109 has 16 divisors (see below), whose sum is σ = 3083931648. Its totient is φ = 2863078272.
The previous prime is 2972409101. The next prime is 2972409131. The reversal of 2972409109 is 9019042792.
2972409109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 2972409109 - 23 = 2972409101 is a prime.
It is a super-2 number, since 2×29724091092 = 17670431822532347762, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2972409101) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2733964 + ... + 2735050.
It is an arithmetic number, because the mean of its divisors is an integer number (192745728).
Almost surely, 22972409109 is an apocalyptic number.
It is an amenable number.
2972409109 is a deficient number, since it is larger than the sum of its proper divisors (111522539).
2972409109 is a wasteful number, since it uses less digits than its factorization.
2972409109 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2004.
The product of its (nonzero) digits is 81648, while the sum is 43.
The square root of 2972409109 is about 54519.8047410297. The cubic root of 2972409109 is about 1437.8145070537.
The spelling of 2972409109 in words is "two billion, nine hundred seventy-two million, four hundred nine thousand, one hundred nine".
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