Base | Representation |
---|---|
bin | 1100010000100… |
… | …11110001010111 |
3 | 21011111212220220 |
4 | 12020103301113 |
5 | 202311411211 |
6 | 14112125423 |
7 | 2356065150 |
oct | 610236127 |
9 | 234455826 |
10 | 102841431 |
11 | 53062320 |
12 | 2a536873 |
13 | 183c9c24 |
14 | d930927 |
15 | 9066806 |
hex | 6213c57 |
102841431 has 32 divisors (see below), whose sum is σ = 171583488. Its totient is φ = 53228640.
The previous prime is 102841429. The next prime is 102841447. The reversal of 102841431 is 134148201.
It is not a de Polignac number, because 102841431 - 21 = 102841429 is a prime.
It is a super-2 number, since 2×1028414312 = 21152719860255522, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102841421) 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 31 ways as a sum of consecutive naturals, for example, 79516 + ... + 80798.
It is an arithmetic number, because the mean of its divisors is an integer number (5361984).
Almost surely, 2102841431 is an apocalyptic number.
102841431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
102841431 is a deficient number, since it is larger than the sum of its proper divisors (68742057).
102841431 is a wasteful number, since it uses less digits than its factorization.
102841431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1651.
The product of its (nonzero) digits is 768, while the sum is 24.
The square root of 102841431 is about 10141.0764221556. The cubic root of 102841431 is about 468.5141411127.
Adding to 102841431 its reverse (134148201), we get a palindrome (236989632).
The spelling of 102841431 in words is "one hundred two million, eight hundred forty-one thousand, four hundred thirty-one".
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