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69053893 = 76989797
BaseRepresentation
bin1000001110110…
…10110111000101
311210221022010121
410013122313011
5120134211033
610504021541
71465643206
oct407326705
9153838117
1069053893
1135a85237
121b1618b1
13113c9cbc
1492575ad
1560e062d
hex41dadc5

69053893 has 4 divisors (see below), whose sum is σ = 69144460. Its totient is φ = 68963328.

The previous prime is 69053869. The next prime is 69053903. The reversal of 69053893 is 39835096.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19731364 + 49322529 = 4442^2 + 7023^2 .

It is a cyclic number.

It is not a de Polignac number, because 69053893 - 29 = 69053381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69053093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44130 + ... + 45667.

It is an arithmetic number, because the mean of its divisors is an integer number (17286115).

Almost surely, 269053893 is an apocalyptic number.

It is an amenable number.

69053893 is a deficient number, since it is larger than the sum of its proper divisors (90567).

69053893 is an equidigital number, since it uses as much as digits as its factorization.

69053893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90566.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 69053893 is about 8309.8672071219. The cubic root of 69053893 is about 410.2633505392.

The spelling of 69053893 in words is "sixty-nine million, fifty-three thousand, eight hundred ninety-three".

Divisors: 1 769 89797 69053893