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127121053 = 1728326423
BaseRepresentation
bin1111001001110…
…11011010011101
322212012102022011
413210323122131
5230020333203
620340351221
73102340213
oct744733235
9285172264
10127121053
1165835a24
12366a5511
132044b277
1412c50cb3
15b26076d
hex793b69d

127121053 has 8 divisors (see below), whose sum is σ = 135079488. Its totient is φ = 119216064.

The previous prime is 127121047. The next prime is 127121063. The reversal of 127121053 is 350121721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-127121053 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 (127121003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8401 + ... + 18022.

It is an arithmetic number, because the mean of its divisors is an integer number (16884936).

Almost surely, 2127121053 is an apocalyptic number.

It is an amenable number.

127121053 is a deficient number, since it is larger than the sum of its proper divisors (7958435).

127121053 is a wasteful number, since it uses less digits than its factorization.

127121053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26723.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 127121053 is about 11274.7972487313. The cubic root of 127121053 is about 502.8122238068.

Adding to 127121053 its reverse (350121721), we get a palindrome (477242774).

The spelling of 127121053 in words is "one hundred twenty-seven million, one hundred twenty-one thousand, fifty-three".

Divisors: 1 17 283 4811 26423 449191 7477709 127121053