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128514 = 2321419
BaseRepresentation
bin11111011000000010
320112021210
4133120002
513103024
62430550
71043451
oct373002
9215253
10128514
1188611
1262456
1346659
1434b98
1528129
hex1f602

128514 has 8 divisors (see below), whose sum is σ = 257040. Its totient is φ = 42836.

The previous prime is 128509. The next prime is 128519. The reversal of 128514 is 415821.

It is an interprime number because it is at equal distance from previous prime (128509) and next prime (128519).

It is a sphenic number, since it is the product of 3 distinct primes.

128514 is an admirable number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (128519) by changing a digit.

128514 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, 10704 + ... + 10715.

It is an arithmetic number, because the mean of its divisors is an integer number (32130).

2128514 is an apocalyptic number.

128514 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128514 is a wasteful number, since it uses less digits than its factorization.

128514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21424.

The product of its digits is 320, while the sum is 21.

The square root of 128514 is about 358.4884935392. The cubic root of 128514 is about 50.4642101739.

The spelling of 128514 in words is "one hundred twenty-eight thousand, five hundred fourteen".

Divisors: 1 2 3 6 21419 42838 64257 128514