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102834785 = 5171209821
BaseRepresentation
bin1100010000100…
…10001001100001
321011111112210202
412020102021201
5202311203120
614112034545
72356036604
oct610221141
9234445722
10102834785
1153058329
122a532a55
13183c6bb1
14d92c33b
159064875
hex6212261

102834785 has 8 divisors (see below), whose sum is σ = 130660776. Its totient is φ = 77428480.

The previous prime is 102834779. The next prime is 102834791. The reversal of 102834785 is 587438201.

It is an interprime number because it is at equal distance from previous prime (102834779) and next prime (102834791).

It can be written as a sum of positive squares in 4 ways, for example, as 32341969 + 70492816 = 5687^2 + 8396^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-102834785 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604826 + ... + 604995.

It is an arithmetic number, because the mean of its divisors is an integer number (16332597).

Almost surely, 2102834785 is an apocalyptic number.

It is an amenable number.

102834785 is a deficient number, since it is larger than the sum of its proper divisors (27825991).

102834785 is a wasteful number, since it uses less digits than its factorization.

102834785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209843.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 102834785 is about 10140.7487396148. The cubic root of 102834785 is about 468.5040485134.

The spelling of 102834785 in words is "one hundred two million, eight hundred thirty-four thousand, seven hundred eighty-five".

Divisors: 1 5 17 85 1209821 6049105 20566957 102834785