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102030255 = 32510322013
BaseRepresentation
bin1100001010011…
…01101110101111
321002222200012100
412011031232233
5202104432010
614042510143
72346146205
oct605155657
9232880170
10102030255
1152658928
122a205353
13181a4942
14d79d075
158e562c0
hex614dbaf

102030255 has 24 divisors (see below), whose sum is σ = 178577568. Its totient is φ = 53885376.

The previous prime is 102030239. The next prime is 102030259. The reversal of 102030255 is 552030201.

It is a happy number.

It is not a de Polignac number, because 102030255 - 24 = 102030239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102030259) 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, 6372 + ... + 15641.

It is an arithmetic number, because the mean of its divisors is an integer number (7440732).

Almost surely, 2102030255 is an apocalyptic number.

102030255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102030255 is a deficient number, since it is larger than the sum of its proper divisors (76547313).

102030255 is a wasteful number, since it uses less digits than its factorization.

102030255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22127 (or 22124 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 102030255 is about 10101.0026730023. The cubic root of 102030255 is about 467.2790647738.

Adding to 102030255 its reverse (552030201), we get a palindrome (654060456).

The spelling of 102030255 in words is "one hundred two million, thirty thousand, two hundred fifty-five".

Divisors: 1 3 5 9 15 45 103 309 515 927 1545 4635 22013 66039 110065 198117 330195 990585 2267339 6802017 11336695 20406051 34010085 102030255