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207136105 = 5113766111
BaseRepresentation
bin11000101100010…
…10010101101001
3112102202121022121
430112022111221
5411011323410
632315351241
75063425231
oct1426122551
9472677277
10207136105
11a6a17470
1259452521
1333bb5457
141d71ccc1
15132b89da
hexc58a569

207136105 has 8 divisors (see below), whose sum is σ = 271160064. Its totient is φ = 150644400.

The previous prime is 207136099. The next prime is 207136121. The reversal of 207136105 is 501631702.

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

It is not a de Polignac number, because 207136105 - 25 = 207136073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 207136105.

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, 1883001 + ... + 1883110.

It is an arithmetic number, because the mean of its divisors is an integer number (33895008).

Almost surely, 2207136105 is an apocalyptic number.

It is an amenable number.

207136105 is a deficient number, since it is larger than the sum of its proper divisors (64023959).

207136105 is a wasteful number, since it uses less digits than its factorization.

207136105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766127.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 207136105 is about 14392.2237684105. The cubic root of 207136105 is about 591.6777915870.

Adding to 207136105 its reverse (501631702), we get a palindrome (708767807).

The spelling of 207136105 in words is "two hundred seven million, one hundred thirty-six thousand, one hundred five".

Divisors: 1 5 11 55 3766111 18830555 41427221 207136105