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102130030 = 2510213003
BaseRepresentation
bin1100001011001…
…10000101101110
321010011202001201
412011212011232
5202121130110
614045000114
72350043122
oct605460556
9233152051
10102130030
1152716892
122a25303a
131820b192
14d7c7582
158e75b3a
hex616616e

102130030 has 8 divisors (see below), whose sum is σ = 183834072. Its totient is φ = 40852008.

The previous prime is 102129991. The next prime is 102130037. The reversal of 102130030 is 30031201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 10213003 = 102130030 / (1 + 0 + 2 + 1 + 3 + 0 + 0 + 3 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 102129989 and 102130016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102130037) 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 3 ways as a sum of consecutive naturals, for example, 5106492 + ... + 5106511.

It is an arithmetic number, because the mean of its divisors is an integer number (22979259).

Almost surely, 2102130030 is an apocalyptic number.

102130030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102130030 is a deficient number, since it is larger than the sum of its proper divisors (81704042).

102130030 is a wasteful number, since it uses less digits than its factorization.

102130030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10213010.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 102130030 is about 10105.9403322996. The cubic root of 102130030 is about 467.4313319601.

Adding to 102130030 its reverse (30031201), we get a palindrome (132161231).

The spelling of 102130030 in words is "one hundred two million, one hundred thirty thousand, thirty".

Divisors: 1 2 5 10 10213003 20426006 51065015 102130030