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121028 = 2279383
BaseRepresentation
bin11101100011000100
320011000112
4131203010
512333103
62332152
71012565
oct354304
9204015
10121028
1182a26
125a058
134311b
143216c
1525cd8
hex1d8c4

121028 has 12 divisors (see below), whose sum is σ = 215040. Its totient is φ = 59592.

The previous prime is 121021. The next prime is 121039. The reversal of 121028 is 820121.

Adding to 121028 its reverse (820121), we get a palindrome (941149).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 121028.

It is not an unprimeable number, because it can be changed into a prime (121021) by changing a digit.

121028 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, 125 + ... + 507.

It is an arithmetic number, because the mean of its divisors is an integer number (17920).

2121028 is an apocalyptic number.

It is an amenable number.

121028 is a deficient number, since it is larger than the sum of its proper divisors (94012).

121028 is a wasteful number, since it uses less digits than its factorization.

121028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 121028 is about 347.8907874607. The cubic root of 121028 is about 49.4646893021.

The spelling of 121028 in words is "one hundred twenty-one thousand, twenty-eight".

Divisors: 1 2 4 79 158 316 383 766 1532 30257 60514 121028