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538376905 = 51142123251
BaseRepresentation
bin100000000101101…
…111101011001001
31101112001101021101
4200011233223021
52100311030110
6125231141401
716225061653
oct4005575311
91345041241
10538376905
112569995a0
12130374861
1387700c21
14517056d3
15323e913a
hex2016fac9

538376905 has 16 divisors (see below), whose sum is σ = 706488768. Its totient is φ = 390600000.

The previous prime is 538376903. The next prime is 538376929. The reversal of 538376905 is 509673835.

It is not a de Polignac number, because 538376905 - 21 = 538376903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538376903) 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, 11530 + ... + 34780.

It is an arithmetic number, because the mean of its divisors is an integer number (44155548).

Almost surely, 2538376905 is an apocalyptic number.

538376905 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

538376905 is a deficient number, since it is larger than the sum of its proper divisors (168111863).

538376905 is a wasteful number, since it uses less digits than its factorization.

538376905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23688.

The product of its (nonzero) digits is 680400, while the sum is 46.

The square root of 538376905 is about 23202.9503511946. The cubic root of 538376905 is about 813.5085851225.

The spelling of 538376905 in words is "five hundred thirty-eight million, three hundred seventy-six thousand, nine hundred five".

Divisors: 1 5 11 55 421 2105 4631 23155 23251 116255 255761 1278805 9788671 48943355 107675381 538376905