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102982686 = 2317163781
BaseRepresentation
bin1100010001101…
…10010000011110
321011210001200120
412020312100132
5202330421221
614115135410
72360224032
oct610662036
9234701616
10102982686
1153149464
122a5a4566
1318449301
14d96a1c2
1590935c6
hex623641e

102982686 has 8 divisors (see below), whose sum is σ = 205965384. Its totient is φ = 34327560.

The previous prime is 102982681. The next prime is 102982723. The reversal of 102982686 is 686289201.

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

102982686 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102982681) 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, 8581885 + ... + 8581896.

It is an arithmetic number, because the mean of its divisors is an integer number (25745673).

Almost surely, 2102982686 is an apocalyptic number.

102982686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102982686 is a wasteful number, since it uses less digits than its factorization.

102982686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17163786.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 102982686 is about 10148.0385296864. The cubic root of 102982686 is about 468.7285478538.

The spelling of 102982686 in words is "one hundred two million, nine hundred eighty-two thousand, six hundred eighty-six".

Divisors: 1 2 3 6 17163781 34327562 51491343 102982686