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102450830 = 2520874909
BaseRepresentation
bin1100001101101…
…00011010001110
321010210001010012
412012310122032
5202211411310
614055513222
72352550316
oct606643216
9233701105
10102450830
1152915909
122a388812
13182c11c1
14d86c446
158edac05
hex61b468e

102450830 has 16 divisors (see below), whose sum is σ = 184537440. Its totient is φ = 40952352.

The previous prime is 102450767. The next prime is 102450853. The reversal of 102450830 is 38054201.

It is a junction number, because it is equal to n+sod(n) for n = 102450796 and 102450805.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18416 + ... + 23324.

It is an arithmetic number, because the mean of its divisors is an integer number (11533590).

Almost surely, 2102450830 is an apocalyptic number.

102450830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102450830 is a deficient number, since it is larger than the sum of its proper divisors (82086610).

102450830 is a wasteful number, since it uses less digits than its factorization.

102450830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7003.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 102450830 is about 10121.7997411528. The cubic root of 102450830 is about 467.9202356329.

The spelling of 102450830 in words is "one hundred two million, four hundred fifty thousand, eight hundred thirty".

Divisors: 1 2 5 10 2087 4174 4909 9818 10435 20870 24545 49090 10245083 20490166 51225415 102450830