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6690936950 = 252983136133
BaseRepresentation
bin1100011101100111…
…11001100001110110
3122021022011210222122
412032303321201312
5102200334440300
63023533555542
7324544011545
oct61663714166
918238153878
106690936950
11292394aa65
121368945bb2
13828283bb9
144768a815c
15292619c85
hex18ecf9876

6690936950 has 24 divisors (see below), whose sum is σ = 12457894608. Its totient is φ = 2673632480.

The previous prime is 6690936919. The next prime is 6690936953. The reversal of 6690936950 is 596390966.

It is a junction number, because it is equal to n+sod(n) for n = 6690936892 and 6690936901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6690936953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18917 + ... + 117216.

It is an arithmetic number, because the mean of its divisors is an integer number (519078942).

Almost surely, 26690936950 is an apocalyptic number.

6690936950 is a deficient number, since it is larger than the sum of its proper divisors (5766957658).

6690936950 is a wasteful number, since it uses less digits than its factorization.

6690936950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137128 (or 137123 counting only the distinct ones).

The product of its (nonzero) digits is 2361960, while the sum is 53.

The square root of 6690936950 is about 81798.1475951626. The cubic root of 6690936950 is about 1884.3532128882.

The spelling of 6690936950 in words is "six billion, six hundred ninety million, nine hundred thirty-six thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 983 1966 4915 9830 24575 49150 136133 272266 680665 1361330 3403325 6806650 133818739 267637478 669093695 1338187390 3345468475 6690936950