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127290193 = 2918672351
BaseRepresentation
bin1111001011001…
…00101101010001
322212112000022121
413211210231101
5230041241233
620344134241
73103643302
oct745445521
9285460277
10127290193
1165941008
1236767381
13204aa254
1412c967a9
15b29592d
hex7964b51

127290193 has 8 divisors (see below), whose sum is σ = 131806080. Its totient is φ = 122782800.

The previous prime is 127290161. The next prime is 127290221. The reversal of 127290193 is 391092721.

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 not a de Polignac number, because 127290193 - 25 = 127290161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127290893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52968 + ... + 55318.

It is an arithmetic number, because the mean of its divisors is an integer number (16475760).

Almost surely, 2127290193 is an apocalyptic number.

It is an amenable number.

127290193 is a deficient number, since it is larger than the sum of its proper divisors (4515887).

127290193 is a wasteful number, since it uses less digits than its factorization.

127290193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 127290193 is about 11282.2955554267. The cubic root of 127290193 is about 503.0351293666.

The spelling of 127290193 in words is "one hundred twenty-seven million, two hundred ninety thousand, one hundred ninety-three".

Divisors: 1 29 1867 2351 54143 68179 4389317 127290193