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88941809 = 118085619
BaseRepresentation
bin1010100110100…
…10010011110001
320012100201020002
411103102103301
5140232114214
612454155345
72126664365
oct523222361
9205321202
1088941809
1146229330
1225952b55
13155713b8
14bb532a5
157c1d1de
hex54d24f1

88941809 has 4 divisors (see below), whose sum is σ = 97027440. Its totient is φ = 80856180.

The previous prime is 88941799. The next prime is 88941817. The reversal of 88941809 is 90814988.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88941809 - 212 = 88937713 is a prime.

It is a super-3 number, since 3×889418093 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (88941829) 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 3 ways as a sum of consecutive naturals, for example, 4042799 + ... + 4042820.

It is an arithmetic number, because the mean of its divisors is an integer number (24256860).

Almost surely, 288941809 is an apocalyptic number.

It is an amenable number.

88941809 is a deficient number, since it is larger than the sum of its proper divisors (8085631).

88941809 is a wasteful number, since it uses less digits than its factorization.

88941809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8085630.

The product of its (nonzero) digits is 165888, while the sum is 47.

The square root of 88941809 is about 9430.8965109368. The cubic root of 88941809 is about 446.3771819832.

The spelling of 88941809 in words is "eighty-eight million, nine hundred forty-one thousand, eight hundred nine".

Divisors: 1 11 8085619 88941809