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69028 = 2217257
BaseRepresentation
bin10000110110100100
310111200121
4100312210
54202103
61251324
7405151
oct206644
9114617
1069028
1147953
1233b44
132555b
141b228
15156bd
hex10da4

69028 has 6 divisors (see below), whose sum is σ = 120806. Its totient is φ = 34512.

The previous prime is 69019. The next prime is 69029. The reversal of 69028 is 82096.

It can be written as a sum of positive squares in only one way, i.e., 40804 + 28224 = 202^2 + 168^2 .

It is a plaindrome in base 13 and base 15.

It is a junction number, because it is equal to n+sod(n) for n = 68993 and 69011.

It is not an unprimeable number, because it can be changed into a prime (69029) by changing a digit.

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 as a sum of consecutive naturals, namely, 8625 + ... + 8632.

269028 is an apocalyptic number.

It is an amenable number.

69028 is a deficient number, since it is larger than the sum of its proper divisors (51778).

69028 is a wasteful number, since it uses less digits than its factorization.

69028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17261 (or 17259 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 69028 is about 262.7318024146. The cubic root of 69028 is about 41.0212065586.

The spelling of 69028 in words is "sixty-nine thousand, twenty-eight".

Divisors: 1 2 4 17257 34514 69028