Base | Representation |
---|---|
bin | 101111101000111101… |
… | …0111101100101010111 |
3 | 100210001220001112002210 |
4 | 1133101322331211113 |
5 | 3134010333030201 |
6 | 114555423404503 |
7 | 10251145602114 |
oct | 1372172754527 |
9 | 323056045083 |
10 | 102306142551 |
11 | 3a42a172138 |
12 | 179b2153733 |
13 | 9855525732 |
14 | 4d4744b90b |
15 | 29db9211d6 |
hex | 17d1ebd957 |
102306142551 has 16 divisors (see below), whose sum is σ = 141128899200. Its totient is φ = 65844306528.
The previous prime is 102306142537. The next prime is 102306142559. The reversal of 102306142551 is 155241603201.
It is not a de Polignac number, because 102306142551 - 26 = 102306142487 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102306142559) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705120 + ... + 837738.
It is an arithmetic number, because the mean of its divisors is an integer number (8820556200).
Almost surely, 2102306142551 is an apocalyptic number.
102306142551 is a deficient number, since it is larger than the sum of its proper divisors (38822756649).
102306142551 is a wasteful number, since it uses less digits than its factorization.
102306142551 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 141518.
The product of its (nonzero) digits is 7200, while the sum is 30.
Adding to 102306142551 its reverse (155241603201), we get a palindrome (257547745752).
The spelling of 102306142551 in words is "one hundred two billion, three hundred six million, one hundred forty-two thousand, five hundred fifty-one".
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