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127143472 = 2473910753
BaseRepresentation
bin1111001010000…
…00111000110000
322212020120001111
413211000320300
5230022042342
620341043104
73102462451
oct745007060
9285216044
10127143472
1165850855
12366b6494
1320458531
1412c59128
15b267217
hex7940e30

127143472 has 20 divisors (see below), whose sum is σ = 246696760. Its totient is φ = 63479808.

The previous prime is 127143437. The next prime is 127143473. The reversal of 127143472 is 274341721.

It is not an unprimeable number, because it can be changed into a prime (127143473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6448 + ... + 17200.

It is an arithmetic number, because the mean of its divisors is an integer number (12334838).

Almost surely, 2127143472 is an apocalyptic number.

It is an amenable number.

127143472 is a deficient number, since it is larger than the sum of its proper divisors (119553288).

127143472 is a wasteful number, since it uses less digits than its factorization.

127143472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11500 (or 11494 counting only the distinct ones).

The product of its digits is 9408, while the sum is 31.

The square root of 127143472 is about 11275.7914134663. The cubic root of 127143472 is about 502.8417806331.

The spelling of 127143472 in words is "one hundred twenty-seven million, one hundred forty-three thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 739 1478 2956 5912 10753 11824 21506 43012 86024 172048 7946467 15892934 31785868 63571736 127143472