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127044 = 22323529
BaseRepresentation
bin11111000001000100
320110021100
4133001010
513031134
62420100
71036251
oct370104
9213240
10127044
11874a5
1261630
1345a98
1434428
1527999
hex1f044

127044 has 18 divisors (see below), whose sum is σ = 321230. Its totient is φ = 42336.

The previous prime is 127037. The next prime is 127051. The reversal of 127044 is 440721.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (127037) and next prime (127051).

It can be written as a sum of positive squares in only one way, i.e., 82944 + 44100 = 288^2 + 210^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1270442 = 32280355872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 15.

It is an unprimeable number.

127044 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1729 + ... + 1800.

2127044 is an apocalyptic number.

It is an amenable number.

127044 is an abundant number, since it is smaller than the sum of its proper divisors (194186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127044 is a wasteful number, since it uses less digits than its factorization.

127044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539 (or 3534 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 127044 is about 356.4323217667. The cubic root of 127044 is about 50.2710611944.

Adding to 127044 its reverse (440721), we get a palindrome (567765).

It can be divided in two parts, 12 and 7044, that added together give a square (7056 = 842).

The spelling of 127044 in words is "one hundred twenty-seven thousand, forty-four", and thus it is an iban number.

Divisors: 1 2 3 4 6 9 12 18 36 3529 7058 10587 14116 21174 31761 42348 63522 127044