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127130806 = 2115778673
BaseRepresentation
bin1111001001111…
…01110010110110
322212012220200101
413210331302312
5230021141211
620340504314
73102410515
oct744756266
9285186611
10127130806
1165842290
12366ab09a
132045283a
1412c5467c
15b2635c1
hex793dcb6

127130806 has 8 divisors (see below), whose sum is σ = 208032264. Its totient is φ = 57786720.

The previous prime is 127130803. The next prime is 127130807. The reversal of 127130806 is 608031721.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127130803) 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 3 ways as a sum of consecutive naturals, for example, 2889315 + ... + 2889358.

It is an arithmetic number, because the mean of its divisors is an integer number (26004033).

Almost surely, 2127130806 is an apocalyptic number.

127130806 is a deficient number, since it is larger than the sum of its proper divisors (80901458).

127130806 is a wasteful number, since it uses less digits than its factorization.

127130806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5778686.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 127130806 is about 11275.2297537567. The cubic root of 127130806 is about 502.8250824223.

The spelling of 127130806 in words is "one hundred twenty-seven million, one hundred thirty thousand, eight hundred six".

Divisors: 1 2 11 22 5778673 11557346 63565403 127130806