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88669369 = 257345017
BaseRepresentation
bin1010100100011…
…11110010111001
320011211212111201
411102033302321
5140144404434
612444254201
72124451165
oct522176271
9204755451
1088669369
1146062678
1225841361
13154a73a9
14bac1ca5
157bb7614
hex548fcb9

88669369 has 4 divisors (see below), whose sum is σ = 89014644. Its totient is φ = 88324096.

The previous prime is 88669367. The next prime is 88669379. The reversal of 88669369 is 96396688.

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 49168144 + 39501225 = 7012^2 + 6285^2 .

It is a cyclic number.

It is not a de Polignac number, because 88669369 - 21 = 88669367 is a prime.

It is a super-2 number, since 2×886693692 = 15724513997716322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88669367) 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, 172252 + ... + 172765.

It is an arithmetic number, because the mean of its divisors is an integer number (22253661).

Almost surely, 288669369 is an apocalyptic number.

It is an amenable number.

88669369 is a deficient number, since it is larger than the sum of its proper divisors (345275).

88669369 is a wasteful number, since it uses less digits than its factorization.

88669369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345274.

The product of its digits is 3359232, while the sum is 55.

The square root of 88669369 is about 9416.4414191349. The cubic root of 88669369 is about 445.9209459246.

The spelling of 88669369 in words is "eighty-eight million, six hundred sixty-nine thousand, three hundred sixty-nine".

Divisors: 1 257 345017 88669369