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5212105 = 510110321
BaseRepresentation
bin10011111000011111001001
3100210210122221
4103320133021
52313241410
6303414041
762205433
oct23703711
910723587
105212105
112a3aa28
1218b4321
1311064b2
14999653
156ce4da
hex4f87c9

5212105 has 8 divisors (see below), whose sum is σ = 6317064. Its totient is φ = 4128000.

The previous prime is 5212093. The next prime is 5212111. The reversal of 5212105 is 5012125.

It can be written as a sum of positive squares in 4 ways, for example, as 1885129 + 3326976 = 1373^2 + 1824^2 .

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

It is not a de Polignac number, because 5212105 - 211 = 5210057 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4656 + ... + 5665.

It is an arithmetic number, because the mean of its divisors is an integer number (789633).

Almost surely, 25212105 is an apocalyptic number.

It is an amenable number.

5212105 is a deficient number, since it is larger than the sum of its proper divisors (1104959).

5212105 is a wasteful number, since it uses less digits than its factorization.

5212105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10427.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 5212105 is about 2283.0035041585. The cubic root of 5212105 is about 173.3821505333.

Subtracting from 5212105 its sum of digits (16), we obtain a square (5212089 = 22832).

The spelling of 5212105 in words is "five million, two hundred twelve thousand, one hundred five".

Divisors: 1 5 101 505 10321 51605 1042421 5212105