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18116339050 = 2521361266221
BaseRepresentation
bin10000110111110100…
…010110010101101010
31201202120002101012101
4100313310112111222
5244100240322200
612153400004014
71210640225005
oct206764262552
951676071171
1018116339050
117757223737
12361716060a
131929375064
14c3c07253c
157106d926a
hex437d1656a

18116339050 has 24 divisors (see below), whose sum is σ = 33721275852. Its totient is φ = 7241184000.

The previous prime is 18116339011. The next prime is 18116339057. The reversal of 18116339050 is 5093361181.

It can be written as a sum of positive squares in 6 ways, for example, as 8754034969 + 9362304081 = 93563^2 + 96759^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18116339057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65061 + ... + 201160.

Almost surely, 218116339050 is an apocalyptic number.

18116339050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18116339050 is a deficient number, since it is larger than the sum of its proper divisors (15604936802).

18116339050 is a wasteful number, since it uses less digits than its factorization.

18116339050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267594 (or 267589 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 18116339050 in words is "eighteen billion, one hundred sixteen million, three hundred thirty-nine thousand, fifty".

Divisors: 1 2 5 10 25 50 1361 2722 6805 13610 34025 68050 266221 532442 1331105 2662210 6655525 13311050 362326781 724653562 1811633905 3623267810 9058169525 18116339050