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102456245 = 5107191507
BaseRepresentation
bin1100001101101…
…01101110110101
321010210022112202
412012311232311
5202212044440
614055554245
72352602153
oct606655665
9233708482
10102456245
1152919991
122a38b985
13182c37c8
14d8703d3
158edc615
hex61b5bb5

102456245 has 8 divisors (see below), whose sum is σ = 124097184. Its totient is φ = 81198544.

The previous prime is 102456241. The next prime is 102456247. The reversal of 102456245 is 542654201.

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

It is a cyclic number.

It is not a de Polignac number, because 102456245 - 22 = 102456241 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102456241) 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, 95219 + ... + 96288.

It is an arithmetic number, because the mean of its divisors is an integer number (15512148).

Almost surely, 2102456245 is an apocalyptic number.

It is an amenable number.

102456245 is a deficient number, since it is larger than the sum of its proper divisors (21640939).

102456245 is a wasteful number, since it uses less digits than its factorization.

102456245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191619.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 102456245 is about 10122.0672295732. The cubic root of 102456245 is about 467.9284794035.

The spelling of 102456245 in words is "one hundred two million, four hundred fifty-six thousand, two hundred forty-five".

Divisors: 1 5 107 535 191507 957535 20491249 102456245