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127039133 = 139772241
BaseRepresentation
bin1111001001001…
…11011010011101
322212001020221002
413210213122131
5230010223013
620334520045
73101546324
oct744473235
9285036832
10127039133
116578a421
1236666025
132041cbb0
1412c2d0bb
15b246358
hex792769d

127039133 has 4 divisors (see below), whose sum is σ = 136811388. Its totient is φ = 117266880.

The previous prime is 127039069. The next prime is 127039139. The reversal of 127039133 is 331930721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53027524 + 74011609 = 7282^2 + 8603^2 .

It is a cyclic number.

It is not a de Polignac number, because 127039133 - 26 = 127039069 is a prime.

It is a super-2 number, since 2×1270391332 = 32277882626783378, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 127039096 and 127039105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127039139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4886108 + ... + 4886133.

It is an arithmetic number, because the mean of its divisors is an integer number (34202847).

Almost surely, 2127039133 is an apocalyptic number.

127039133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

127039133 is a deficient number, since it is larger than the sum of its proper divisors (9772255).

127039133 is an equidigital number, since it uses as much as digits as its factorization.

127039133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9772254.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 127039133 is about 11271.1637819703. The cubic root of 127039133 is about 502.7041923213.

Adding to 127039133 its reverse (331930721), we get a palindrome (458969854).

The spelling of 127039133 in words is "one hundred twenty-seven million, thirty-nine thousand, one hundred thirty-three".

Divisors: 1 13 9772241 127039133