[go: up one dir, main page]

Search a number
-
+
127255061 = 739172199
BaseRepresentation
bin1111001010111…
…00001000010101
322212110020010102
413211130020111
5230034130221
620343303445
73103436003
oct745341025
9285406112
10127255061
116591767a
123674ab85
132049726b
1412c87a73
15b28a30b
hex795c215

127255061 has 4 divisors (see below), whose sum is σ = 127428000. Its totient is φ = 127082124.

The previous prime is 127255057. The next prime is 127255069. The reversal of 127255061 is 160552721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 160552721 = 722936103.

It is a cyclic number.

It is not a de Polignac number, because 127255061 - 22 = 127255057 is a prime.

It is a super-2 number, since 2×1272550612 = 32387701100227442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127255069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85361 + ... + 86838.

It is an arithmetic number, because the mean of its divisors is an integer number (31857000).

Almost surely, 2127255061 is an apocalyptic number.

It is an amenable number.

127255061 is a deficient number, since it is larger than the sum of its proper divisors (172939).

127255061 is an equidigital number, since it uses as much as digits as its factorization.

127255061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172938.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 127255061 is about 11280.7384953291. The cubic root of 127255061 is about 502.9888459992.

The spelling of 127255061 in words is "one hundred twenty-seven million, two hundred fifty-five thousand, sixty-one".

Divisors: 1 739 172199 127255061