Base | Representation |
---|---|
bin | 101111101010000000… |
… | …0110001110000110111 |
3 | 100210011100001201021120 |
4 | 1133110000301300313 |
5 | 3134043323041211 |
6 | 115003115315023 |
7 | 10252053012651 |
oct | 1372400616067 |
9 | 323140051246 |
10 | 102341221431 |
11 | 3a447a51449 |
12 | 17a01a4ba73 |
13 | 985c888377 |
14 | 4d4bd7d6d1 |
15 | 29dea4ed06 |
hex | 17d4031c37 |
102341221431 has 16 divisors (see below), whose sum is σ = 136586571264. Its totient is φ = 68161716864.
The previous prime is 102341221379. The next prime is 102341221441. The reversal of 102341221431 is 134122143201.
It is not a de Polignac number, because 102341221431 - 219 = 102340697143 is a prime.
It is a super-2 number, since 2×1023412214312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102341221441) 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, 21973455 + ... + 21978111.
It is an arithmetic number, because the mean of its divisors is an integer number (8536660704).
Almost surely, 2102341221431 is an apocalyptic number.
102341221431 is a deficient number, since it is larger than the sum of its proper divisors (34245349833).
102341221431 is a wasteful number, since it uses less digits than its factorization.
102341221431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10150.
The product of its (nonzero) digits is 1152, while the sum is 24.
Adding to 102341221431 its reverse (134122143201), we get a palindrome (236463364632).
It can be divided in two parts, 10234 and 1221431, that added together give a triangular number (1231665 = T1569).
The spelling of 102341221431 in words is "one hundred two billion, three hundred forty-one million, two hundred twenty-one thousand, four hundred thirty-one".
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