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69013233 = 327668137
BaseRepresentation
bin1000001110100…
…00111011110001
311210212020100200
410013100323301
5120131410413
610503105413
71465413522
oct407207361
9153766320
1069013233
1135a57733
121b142269
13113b4643
149246849
1560d3573
hex41d0ef1

69013233 has 6 divisors (see below), whose sum is σ = 99685794. Its totient is φ = 46008816.

The previous prime is 69013213. The next prime is 69013253. The reversal of 69013233 is 33231096.

It is an interprime number because it is at equal distance from previous prime (69013213) and next prime (69013253).

It can be written as a sum of positive squares in only one way, i.e., 43125489 + 25887744 = 6567^2 + 5088^2 .

It is not a de Polignac number, because 69013233 - 25 = 69013201 is a prime.

It is a super-2 number, since 2×690132332 = 9525652658224578, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 69013197 and 69013206.

It is not an unprimeable number, because it can be changed into a prime (69013213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3834060 + ... + 3834077.

It is an arithmetic number, because the mean of its divisors is an integer number (16614299).

Almost surely, 269013233 is an apocalyptic number.

It is an amenable number.

69013233 is a deficient number, since it is larger than the sum of its proper divisors (30672561).

69013233 is a wasteful number, since it uses less digits than its factorization.

69013233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7668143 (or 7668140 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 69013233 is about 8307.4203577284. The cubic root of 69013233 is about 410.1828115947.

The spelling of 69013233 in words is "sixty-nine million, thirteen thousand, two hundred thirty-three".

Divisors: 1 3 9 7668137 23004411 69013233