Base | Representation |
---|---|
bin | 1000011111101100111… |
… | …0010100011000000101 |
3 | 111221201102022222010112 |
4 | 2013323032110120011 |
5 | 4342400340133321 |
6 | 151014204202405 |
7 | 13354513644455 |
oct | 2077316243005 |
9 | 457642288115 |
10 | 145948755461 |
11 | 569952a4173 |
12 | 24351b39405 |
13 | 109bc158042 |
14 | 70c76dbd65 |
15 | 3be30d5a5b |
hex | 21fb394605 |
145948755461 has 2 divisors, whose sum is σ = 145948755462. Its totient is φ = 145948755460.
The previous prime is 145948755457. The next prime is 145948755497. The reversal of 145948755461 is 164557849541.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 145289806561 + 658948900 = 381169^2 + 25670^2 .
It is a cyclic number.
It is not a de Polignac number, because 145948755461 - 22 = 145948755457 is a prime.
It is a super-2 number, since 2×1459487554612 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 145948755461.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (145948755451) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72974377730 + 72974377731.
It is an arithmetic number, because the mean of its divisors is an integer number (72974377731).
Almost surely, 2145948755461 is an apocalyptic number.
It is an amenable number.
145948755461 is a deficient number, since it is larger than the sum of its proper divisors (1).
145948755461 is an equidigital number, since it uses as much as digits as its factorization.
145948755461 is an evil number, because the sum of its binary digits is even.
The product of its digits is 24192000, while the sum is 59.
The spelling of 145948755461 in words is "one hundred forty-five billion, nine hundred forty-eight million, seven hundred fifty-five thousand, four hundred sixty-one".
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