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127070009 = 11234211193
BaseRepresentation
bin1111001001011…
…10111100111001
322212002211021122
413210232330321
5230012220014
620335315025
73102035333
oct744567471
9285084248
10127070009
1165800640
123667ba75
1320430c71
1412c3a453
15b25058e
hex792ef39

127070009 has 16 divisors (see below), whose sum is σ = 145113984. Its totient is φ = 110140800.

The previous prime is 127069993. The next prime is 127070051. The reversal of 127070009 is 900070721.

It is not a de Polignac number, because 127070009 - 24 = 127069993 is a prime.

It is a super-2 number, since 2×1270700092 = 32293574374520162, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 127070009.

It is not an unprimeable number, because it can be changed into a prime (127070509) 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 15 ways as a sum of consecutive naturals, for example, 105917 + ... + 107109.

It is an arithmetic number, because the mean of its divisors is an integer number (9069624).

Almost surely, 2127070009 is an apocalyptic number.

It is an amenable number.

127070009 is a deficient number, since it is larger than the sum of its proper divisors (18043975).

127070009 is a wasteful number, since it uses less digits than its factorization.

127070009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648.

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 127070009 is about 11272.5333887286. The cubic root of 127070009 is about 502.7449153043.

The spelling of 127070009 in words is "one hundred twenty-seven million, seventy thousand, nine".

Divisors: 1 11 23 253 421 1193 4631 9683 13123 27439 106513 301829 502253 5524783 11551819 127070009