Base | Representation |
---|---|
bin | 101111100101110100… |
… | …1111101011001001111 |
3 | 100202210120020211212012 |
4 | 1133023221331121033 |
5 | 3133301430201111 |
6 | 114541150331435 |
7 | 10245431232233 |
oct | 1371351753117 |
9 | 322716224765 |
10 | 102201022031 |
11 | 3a3858a3579 |
12 | 17982ab9b7b |
13 | 983980b344 |
14 | 4d374c65c3 |
15 | 29d25a948b |
hex | 17cba7d64f |
102201022031 has 12 divisors (see below), whose sum is σ = 106977097920. Its totient is φ = 97629987840.
The previous prime is 102201022009. The next prime is 102201022087. The reversal of 102201022031 is 130220102201.
It is a happy number.
It is not a de Polignac number, because 102201022031 - 210 = 102201021007 is a prime.
It is a super-2 number, since 2×1022010220312 (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 = 102201021997 and 102201022015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102201022631) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281186 + ... + 532416.
It is an arithmetic number, because the mean of its divisors is an integer number (8914758160).
Almost surely, 2102201022031 is an apocalyptic number.
102201022031 is a deficient number, since it is larger than the sum of its proper divisors (4776075889).
102201022031 is an equidigital number, since it uses as much as digits as its factorization.
102201022031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 252046 (or 252023 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 14.
Adding to 102201022031 its reverse (130220102201), we get a palindrome (232421124232).
The spelling of 102201022031 in words is "one hundred two billion, two hundred one million, twenty-two thousand, thirty-one".
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