Base | Representation |
---|---|
bin | 101111101101010111… |
… | …1110110100101001111 |
3 | 100210110012200220100111 |
4 | 1133122233312211033 |
5 | 3134311240201411 |
6 | 115022233340451 |
7 | 10254624355051 |
oct | 1373257664517 |
9 | 323405626314 |
10 | 102454225231 |
11 | 3a4a5814916 |
12 | 17a33867727 |
13 | 987a102a17 |
14 | 4d5cd978d1 |
15 | 29e9922721 |
hex | 17dabf694f |
102454225231 has 4 divisors (see below), whose sum is σ = 103106800072. Its totient is φ = 101801650392.
The previous prime is 102454225229. The next prime is 102454225267. The reversal of 102454225231 is 132522454201.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 102454225231 - 21 = 102454225229 is a prime.
It is a super-2 number, since 2×1024542252312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 102454225193 and 102454225202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102454225271) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326287185 + ... + 326287498.
It is an arithmetic number, because the mean of its divisors is an integer number (25776700018).
Almost surely, 2102454225231 is an apocalyptic number.
102454225231 is a deficient number, since it is larger than the sum of its proper divisors (652574841).
102454225231 is an equidigital number, since it uses as much as digits as its factorization.
102454225231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 652574840.
The product of its (nonzero) digits is 19200, while the sum is 31.
Adding to 102454225231 its reverse (132522454201), we get a palindrome (234976679432).
The spelling of 102454225231 in words is "one hundred two billion, four hundred fifty-four million, two hundred twenty-five thousand, two hundred thirty-one".
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