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538383670385 = 51134772738803
BaseRepresentation
bin1111101010110100010…
…10101101110001110001
31220110122212212012100012
413311122022231301301
532310102204423020
61051155142304305
753616435456041
oct7653212556161
91813585765305
10538383670385
11198366601140
1288413728095
133ba0039a982
141c0b4c89721
15e0107927c5
hex7d5a2adc71

538383670385 has 32 divisors (see below), whose sum is σ = 707814761472. Its totient is φ = 389876287680.

The previous prime is 538383670343. The next prime is 538383670403. The reversal of 538383670385 is 583076383835.

It is not a de Polignac number, because 538383670385 - 28 = 538383670129 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13855394 + ... + 13894196.

It is an arithmetic number, because the mean of its divisors is an integer number (22119211296).

Almost surely, 2538383670385 is an apocalyptic number.

538383670385 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

538383670385 is a deficient number, since it is larger than the sum of its proper divisors (169431091087).

538383670385 is a wasteful number, since it uses less digits than its factorization.

538383670385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39893.

The product of its (nonzero) digits is 43545600, while the sum is 59.

The spelling of 538383670385 in words is "five hundred thirty-eight billion, three hundred eighty-three million, six hundred seventy thousand, three hundred eighty-five".

Divisors: 1 5 11 55 347 727 1735 3635 3817 7997 19085 38803 39985 194015 252269 426833 1261345 2134165 2774959 13464641 13874795 28209781 67323205 141048905 148111051 310307591 740555255 1551537955 9788794007 48943970035 107676734077 538383670385