Base | Representation |
---|---|
bin | 1000110110110010010… |
… | …1001101110001010101 |
3 | 112112201021200202201222 |
4 | 2031230211031301111 |
5 | 4443043230103141 |
6 | 153521131100125 |
7 | 13664210561204 |
oct | 2155445156125 |
9 | 475637622658 |
10 | 152145550421 |
11 | 59585218a17 |
12 | 255a12a1645 |
13 | 11468c28317 |
14 | 75146d723b |
15 | 3e5714314b |
hex | 236c94dc55 |
152145550421 has 2 divisors, whose sum is σ = 152145550422. Its totient is φ = 152145550420.
The previous prime is 152145550391. The next prime is 152145550433. The reversal of 152145550421 is 124055541251.
152145550421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 91451808100 + 60693742321 = 302410^2 + 246361^2 .
It is an emirp because it is prime and its reverse (124055541251) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 152145550421 - 230 = 151071808597 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (152145550441) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76072775210 + 76072775211.
It is an arithmetic number, because the mean of its divisors is an integer number (76072775211).
Almost surely, 2152145550421 is an apocalyptic number.
It is an amenable number.
152145550421 is a deficient number, since it is larger than the sum of its proper divisors (1).
152145550421 is an equidigital number, since it uses as much as digits as its factorization.
152145550421 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 40000, while the sum is 35.
The spelling of 152145550421 in words is "one hundred fifty-two billion, one hundred forty-five million, five hundred fifty thousand, four hundred twenty-one".
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