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127428544 = 261991071
BaseRepresentation
bin1111001100001…
…10011111000000
322212210001002201
413212012133000
5230110203134
620351122544
73105060535
oct746063700
9285701081
10127428544
1165a25a51
1236813454
1320528209
1412cd0d8c
15b2c1914
hex79867c0

127428544 has 14 divisors (see below), whose sum is σ = 252866144. Its totient is φ = 63714240.

The previous prime is 127428541. The next prime is 127428559. The reversal of 127428544 is 445824721.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127428541) 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 as a sum of consecutive naturals, namely, 995472 + ... + 995599.

Almost surely, 2127428544 is an apocalyptic number.

It is an amenable number.

127428544 is a deficient number, since it is larger than the sum of its proper divisors (125437600).

127428544 is an equidigital number, since it uses as much as digits as its factorization.

127428544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991083 (or 1991073 counting only the distinct ones).

The product of its digits is 71680, while the sum is 37.

The square root of 127428544 is about 11288.4252223240. The cubic root of 127428544 is about 503.2173120692.

The spelling of 127428544 in words is "one hundred twenty-seven million, four hundred twenty-eight thousand, five hundred forty-four".

Divisors: 1 2 4 8 16 32 64 1991071 3982142 7964284 15928568 31857136 63714272 127428544