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127671073 = 382133413
BaseRepresentation
bin1111001110000…
…01101100100001
322220020100210021
413213001230201
5230140433243
620400233441
73110120605
oct747015441
9286210707
10127671073
1166081192
123690b881
13205b171a
1412d55505
15b31d6ed
hex79c1b21

127671073 has 4 divisors (see below), whose sum is σ = 127708308. Its totient is φ = 127633840.

The previous prime is 127671043. The next prime is 127671101. The reversal of 127671073 is 370176721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 370176721 = 894159289.

It can be written as a sum of positive squares in 2 ways, for example, as 119508624 + 8162449 = 10932^2 + 2857^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-127671073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127671023) 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, 12886 + ... + 20527.

It is an arithmetic number, because the mean of its divisors is an integer number (31927077).

Almost surely, 2127671073 is an apocalyptic number.

It is an amenable number.

127671073 is a deficient number, since it is larger than the sum of its proper divisors (37235).

127671073 is an equidigital number, since it uses as much as digits as its factorization.

127671073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37234.

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 127671073 is about 11299.1624910876. The cubic root of 127671073 is about 503.5363600155.

The spelling of 127671073 in words is "one hundred twenty-seven million, six hundred seventy-one thousand, seventy-three".

Divisors: 1 3821 33413 127671073