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127648 = 253989
BaseRepresentation
bin11111001010100000
320111002201
4133022200
513041043
62422544
71041103
oct371240
9214081
10127648
11879a4
1261a54
1346141
143473a
1527c4d
hex1f2a0

127648 has 12 divisors (see below), whose sum is σ = 251370. Its totient is φ = 63808.

The previous prime is 127643. The next prime is 127649. The reversal of 127648 is 846721.

It can be written as a sum of positive squares in only one way, i.e., 110224 + 17424 = 332^2 + 132^2 .

It is not an unprimeable number, because it can be changed into a prime (127643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1963 + ... + 2026.

127648 is a Friedman number, since it can be written as 7^6+(8+2)^4-1, using all its digits and the basic arithmetic operations.

2127648 is an apocalyptic number.

It is an amenable number.

127648 is a deficient number, since it is larger than the sum of its proper divisors (123722).

127648 is an equidigital number, since it uses as much as digits as its factorization.

127648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999 (or 3991 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 127648 is about 357.2786027738. The cubic root of 127648 is about 50.3506024785.

The spelling of 127648 in words is "one hundred twenty-seven thousand, six hundred forty-eight".

Divisors: 1 2 4 8 16 32 3989 7978 15956 31912 63824 127648