Search a number
-
+
127028 = 22112887
BaseRepresentation
bin11111000000110100
320110020202
4133000310
513031103
62420032
71036226
oct370064
9213222
10127028
1187490
1261618
1345a85
1434416
1527988
hex1f034

127028 has 12 divisors (see below), whose sum is σ = 242592. Its totient is φ = 57720.

The previous prime is 126989. The next prime is 127031. The reversal of 127028 is 820721.

It is a super-2 number, since 2×1270282 = 32272225568, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 127028.

It is an unprimeable number.

127028 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1400 + ... + 1487.

It is an arithmetic number, because the mean of its divisors is an integer number (20216).

2127028 is an apocalyptic number.

It is an amenable number.

127028 is a deficient number, since it is larger than the sum of its proper divisors (115564).

127028 is a wasteful number, since it uses less digits than its factorization.

127028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902 (or 2900 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 127028 is about 356.4098764064. The cubic root of 127028 is about 50.2689507163.

Adding to 127028 its reverse (820721), we get a palindrome (947749).

The spelling of 127028 in words is "one hundred twenty-seven thousand, twenty-eight".

Divisors: 1 2 4 11 22 44 2887 5774 11548 31757 63514 127028