Base | Representation |
---|---|
bin | 1101010011011001… |
… | …01001100100101011 |
3 | 200102201222021112211 |
4 | 12221230221210223 |
5 | 104111324141134 |
6 | 3140410145551 |
7 | 341662115611 |
oct | 65154514453 |
9 | 20381867484 |
10 | 7142021419 |
11 | 3035537445 |
12 | 1473a222b7 |
13 | 89a8703a0 |
14 | 4ba7696b1 |
15 | 2bc01e764 |
hex | 1a9b2992b |
7142021419 has 16 divisors (see below), whose sum is σ = 8189385120. Its totient is φ = 6170135040.
The previous prime is 7142021353. The next prime is 7142021423. The reversal of 7142021419 is 9141202417.
It is not a de Polignac number, because 7142021419 - 217 = 7141890347 is a prime.
It is a super-3 number, since 3×71420214193 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (7142021219) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50712 + ... + 129829.
It is an arithmetic number, because the mean of its divisors is an integer number (511836570).
Almost surely, 27142021419 is an apocalyptic number.
7142021419 is a deficient number, since it is larger than the sum of its proper divisors (1047363701).
7142021419 is a wasteful number, since it uses less digits than its factorization.
7142021419 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 180750.
The product of its (nonzero) digits is 4032, while the sum is 31.
The square root of 7142021419 is about 84510.4811192079. The cubic root of 7142021419 is about 1925.7816733498.
The spelling of 7142021419 in words is "seven billion, one hundred forty-two million, twenty-one thousand, four hundred nineteen".
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