Base | Representation |
---|---|
bin | 101111100100011101… |
… | …1100101111110010101 |
3 | 100202200101020120220210 |
4 | 1133020323211332111 |
5 | 3133203230004140 |
6 | 114532434520033 |
7 | 10244334556002 |
oct | 1371073457625 |
9 | 322611216823 |
10 | 102155313045 |
11 | 3a362013755 |
12 | 1796b736019 |
13 | 98301c60c6 |
14 | 4d313c88a9 |
15 | 29cd57ad80 |
hex | 17c8ee5f95 |
102155313045 has 16 divisors (see below), whose sum is σ = 163452915072. Its totient is φ = 54481362240.
The previous prime is 102155313011. The next prime is 102155313101. The reversal of 102155313045 is 540313551201.
It is not a de Polignac number, because 102155313045 - 29 = 102155312533 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 704475 + ... + 837015.
It is an arithmetic number, because the mean of its divisors is an integer number (10215807192).
Almost surely, 2102155313045 is an apocalyptic number.
102155313045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
102155313045 is a deficient number, since it is larger than the sum of its proper divisors (61297602027).
102155313045 is a wasteful number, since it uses less digits than its factorization.
102155313045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 183932.
The product of its (nonzero) digits is 9000, while the sum is 30.
Adding to 102155313045 its reverse (540313551201), we get a palindrome (642468864246).
The spelling of 102155313045 in words is "one hundred two billion, one hundred fifty-five million, three hundred thirteen thousand, forty-five".
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