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13530069 = 327214763
BaseRepresentation
bin110011100111…
…001111010101
3221110101202200
4303213033111
511430430234
61201555113
7223001160
oct63471725
927411680
1013530069
117701383
124645a99
132a59577
141b22ad7
1512c3d99
hexce73d5

13530069 has 12 divisors (see below), whose sum is σ = 22335456. Its totient is φ = 7731432.

The previous prime is 13530067. The next prime is 13530089. The reversal of 13530069 is 96003531.

13530069 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13530069 - 21 = 13530067 is a prime.

It is a super-2 number, since 2×135300692 = 366125534289522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13530067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107319 + ... + 107444.

It is an arithmetic number, because the mean of its divisors is an integer number (1861288).

Almost surely, 213530069 is an apocalyptic number.

It is an amenable number.

13530069 is a deficient number, since it is larger than the sum of its proper divisors (8805387).

13530069 is a wasteful number, since it uses less digits than its factorization.

13530069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214776 (or 214773 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 13530069 is about 3678.3242108330. The cubic root of 13530069 is about 238.2868102692.

The spelling of 13530069 in words is "thirteen million, five hundred thirty thousand, sixty-nine".

Divisors: 1 3 7 9 21 63 214763 644289 1503341 1932867 4510023 13530069