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102103030 = 2510210303
BaseRepresentation
bin1100001010111…
…11011111110110
321010010101000201
412011133133312
5202114244110
614044231114
72346601321
oct605373766
9233111021
10102103030
11526a8577
122a23b49a
13181cbac3
14d7bb7b8
158e6cb3a
hex615f7f6

102103030 has 8 divisors (see below), whose sum is σ = 183785472. Its totient is φ = 40841208.

The previous prime is 102103013. The next prime is 102103039. The reversal of 102103030 is 30301201.

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: 10210303 = 102103030 / (1 + 0 + 2 + 1 + 0 + 3 + 0 + 3 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 102102998 and 102103016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102103039) 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, 5105142 + ... + 5105161.

It is an arithmetic number, because the mean of its divisors is an integer number (22973184).

Almost surely, 2102103030 is an apocalyptic number.

102103030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102103030 is a deficient number, since it is larger than the sum of its proper divisors (81682442).

102103030 is a wasteful number, since it uses less digits than its factorization.

102103030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10210310.

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

The square root of 102103030 is about 10104.6043960167. The cubic root of 102103030 is about 467.3901368996.

Adding to 102103030 its reverse (30301201), we get a palindrome (132404231).

The spelling of 102103030 in words is "one hundred two million, one hundred three thousand, thirty".

Divisors: 1 2 5 10 10210303 20420606 51051515 102103030