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102102313023 = 342354805321
BaseRepresentation
bin101111100010111000…
…1011010100000111111
3100202112200111220120000
41133011301122200333
53133101143004043
6114523302525343
710243122224664
oct1370561324077
9322480456500
10102102313023
113a335103a87
1217955a36853
13982222a349
144d2834da6b
1529c8aac2d3
hex17c5c5a83f

102102313023 has 20 divisors (see below), whose sum is σ = 159154655088. Its totient is φ = 65108720160.

The previous prime is 102102313009. The next prime is 102102313039. The reversal of 102102313023 is 320313201201.

It is not a de Polignac number, because 102102313023 - 24 = 102102313007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102102312987 and 102102313005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102313003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27400798 + ... + 27404523.

Almost surely, 2102102313023 is an apocalyptic number.

102102313023 is a deficient number, since it is larger than the sum of its proper divisors (57052342065).

102102313023 is an equidigital number, since it uses as much as digits as its factorization.

102102313023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54805356 (or 54805347 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 102102313023 its reverse (320313201201), we get a palindrome (422415514224).

The spelling of 102102313023 in words is "one hundred two billion, one hundred two million, three hundred thirteen thousand, twenty-three".

Divisors: 1 3 9 23 27 69 81 207 621 1863 54805321 164415963 493247889 1260522383 1479743667 3781567149 4439231001 11344701447 34034104341 102102313023