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102300245 = 523098861
BaseRepresentation
bin1100001100011…
…11101001010101
321010111101112222
412012033221111
5202142101440
614052352125
72351352305
oct606175125
9233441488
10102300245
1152822763
122a315645
131826a7b8
14d82d605
158eab2b5
hex618fa55

102300245 has 8 divisors (see below), whose sum is σ = 122827320. Its totient is φ = 81795520.

The previous prime is 102300241. The next prime is 102300257. The reversal of 102300245 is 542003201.

It can be written as a sum of positive squares in 4 ways, for example, as 57168721 + 45131524 = 7561^2 + 6718^2 .

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

It is not a de Polignac number, because 102300245 - 22 = 102300241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102300241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7115 + ... + 15975.

It is an arithmetic number, because the mean of its divisors is an integer number (15353415).

Almost surely, 2102300245 is an apocalyptic number.

It is an amenable number.

102300245 is a deficient number, since it is larger than the sum of its proper divisors (20527075).

102300245 is an equidigital number, since it uses as much as digits as its factorization.

102300245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11175.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 102300245 is about 10114.3583582944. The cubic root of 102300245 is about 467.6908692819.

Adding to 102300245 its reverse (542003201), we get a palindrome (644303446).

The spelling of 102300245 in words is "one hundred two million, three hundred thousand, two hundred forty-five".

Divisors: 1 5 2309 8861 11545 44305 20460049 102300245