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6690492103 = 172369124763
BaseRepresentation
bin1100011101100100…
…01100111011000111
3122021021100012202211
412032302030323013
5102200231221403
63023520244251
7324540146611
oct61662147307
918237305684
106690492103
112923676819
121368770687
13828159589
144767cddb1
1529257d06d
hex18ec8cec7

6690492103 has 16 divisors (see below), whose sum is σ = 7403049216. Its totient is φ = 6014194560.

The previous prime is 6690492007. The next prime is 6690492131. The reversal of 6690492103 is 3012940966.

It is not a de Polignac number, because 6690492103 - 213 = 6690483911 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 (6660492103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257800 + ... + 282562.

It is an arithmetic number, because the mean of its divisors is an integer number (462690576).

Almost surely, 26690492103 is an apocalyptic number.

6690492103 is a deficient number, since it is larger than the sum of its proper divisors (712557113).

6690492103 is a wasteful number, since it uses less digits than its factorization.

6690492103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25494.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 6690492103 is about 81795.4283746959. The cubic root of 6690492103 is about 1884.3114515496.

The spelling of 6690492103 in words is "six billion, six hundred ninety million, four hundred ninety-two thousand, one hundred three".

Divisors: 1 17 23 391 691 11747 15893 24763 270181 420971 569549 9682333 17111233 290890961 393558359 6690492103