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127913903 = 132756887
BaseRepresentation
bin1111001111111…
…00111110101111
322220200200212222
413213330332233
5230221221103
620405345555
73112151555
oct747747657
9286620788
10127913903
1166227677
1236a082bb
1320668100
1412db9bd5
15b36a638
hex79fcfaf

127913903 has 6 divisors (see below), whose sum is σ = 138510504. Its totient is φ = 118074216.

The previous prime is 127913893. The next prime is 127913917. The reversal of 127913903 is 309319721.

It is not a de Polignac number, because 127913903 - 24 = 127913887 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 (127913923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 378275 + ... + 378612.

It is an arithmetic number, because the mean of its divisors is an integer number (23085084).

Almost surely, 2127913903 is an apocalyptic number.

127913903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

127913903 is a deficient number, since it is larger than the sum of its proper divisors (10596601).

127913903 is an equidigital number, since it uses as much as digits as its factorization.

127913903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756913 (or 756900 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 127913903 is about 11309.9028731462. The cubic root of 127913903 is about 503.8553993818.

The spelling of 127913903 in words is "one hundred twenty-seven million, nine hundred thirteen thousand, nine hundred three".

Divisors: 1 13 169 756887 9839531 127913903