Base | Representation |
---|---|
bin | 10001010010010… |
… | …00101111000111 |
3 | 101002211211112210 |
4 | 20221020233013 |
5 | 244110021130 |
6 | 22215514503 |
7 | 3410330436 |
oct | 1051105707 |
9 | 332754483 |
10 | 145001415 |
11 | 74938789 |
12 | 40688a33 |
13 | 2406b970 |
14 | 1538711d |
15 | cae35b0 |
hex | 8a48bc7 |
145001415 has 96 divisors (see below), whose sum is σ = 277272576. Its totient is φ = 64235520.
The previous prime is 145001413. The next prime is 145001429. The reversal of 145001415 is 514100541.
It is not a de Polignac number, because 145001415 - 21 = 145001413 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 145001391 and 145001400.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145001413) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1746964 + ... + 1747046.
It is an arithmetic number, because the mean of its divisors is an integer number (2888256).
Almost surely, 2145001415 is an apocalyptic number.
145001415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
145001415 is a deficient number, since it is larger than the sum of its proper divisors (132271161).
145001415 is a wasteful number, since it uses less digits than its factorization.
145001415 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 169 (or 152 counting only the distinct ones).
The product of its (nonzero) digits is 400, while the sum is 21.
The square root of 145001415 is about 12041.6533333260. The cubic root of 145001415 is about 525.3604961694.
Adding to 145001415 its reverse (514100541), we get a palindrome (659101956).
The spelling of 145001415 in words is "one hundred forty-five million, one thousand, four hundred fifteen".
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