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102530103 = 3132434703
BaseRepresentation
bin1100001110001…
…11110000110111
321010221001212020
412013013300313
5202221430403
614101324223
72353330404
oct607076067
9233831766
10102530103
115296a425
122a406673
131831b300
14d88d2ab
159004453
hex61c7c37

102530103 has 24 divisors (see below), whose sum is σ = 151506432. Its totient is φ = 61615008.

The previous prime is 102530093. The next prime is 102530107. The reversal of 102530103 is 301035201.

It is a happy number.

It is not a de Polignac number, because 102530103 - 221 = 100432951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102530107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19450 + ... + 24152.

It is an arithmetic number, because the mean of its divisors is an integer number (6312768).

Almost surely, 2102530103 is an apocalyptic number.

102530103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102530103 is a deficient number, since it is larger than the sum of its proper divisors (48976329).

102530103 is a wasteful number, since it uses less digits than its factorization.

102530103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4775 (or 4762 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 102530103 is about 10125.7149377217. The cubic root of 102530103 is about 468.0408914887.

Adding to 102530103 its reverse (301035201), we get a palindrome (403565304).

The spelling of 102530103 in words is "one hundred two million, five hundred thirty thousand, one hundred three".

Divisors: 1 3 13 39 43 129 169 507 559 1677 4703 7267 14109 21801 61139 183417 202229 606687 794807 2384421 2628977 7886931 34176701 102530103