Base | Representation |
---|---|
bin | 1000011101100011100… |
… | …0001001111011110011 |
3 | 111220020021001011221001 |
4 | 2013120320021323303 |
5 | 4340210331121204 |
6 | 150441101342431 |
7 | 13334316014305 |
oct | 2073070117363 |
9 | 456207034831 |
10 | 145372520179 |
11 | 56719aa8067 |
12 | 24210b67a17 |
13 | 10929960313 |
14 | 7070d7d975 |
15 | 3bac70e4a4 |
hex | 21d8e09ef3 |
145372520179 has 2 divisors, whose sum is σ = 145372520180. Its totient is φ = 145372520178.
The previous prime is 145372520171. The next prime is 145372520197. The reversal of 145372520179 is 971025273541.
Together with next prime (145372520197) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 145372520179 - 23 = 145372520171 is a prime.
It is a super-2 number, since 2×1453725201792 (a number of 23 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (145372520171) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72686260089 + 72686260090.
It is an arithmetic number, because the mean of its divisors is an integer number (72686260090).
Almost surely, 2145372520179 is an apocalyptic number.
145372520179 is a deficient number, since it is larger than the sum of its proper divisors (1).
145372520179 is an equidigital number, since it uses as much as digits as its factorization.
145372520179 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 529200, while the sum is 46.
The spelling of 145372520179 in words is "one hundred forty-five billion, three hundred seventy-two million, five hundred twenty thousand, one hundred seventy-nine".
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