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88388849 = 139635891
BaseRepresentation
bin1010100010010…
…11010011110001
320011022121201002
411101023103301
5140111420344
612434251345
72122202303
oct521132361
9204277632
1088388849
114599093a
1225726b55
13154097c3
14ba4b973
157b5e44e
hex544b4f1

88388849 has 4 divisors (see below), whose sum is σ = 89024880. Its totient is φ = 87752820.

The previous prime is 88388813. The next prime is 88388851. The reversal of 88388849 is 94888388.

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 a de Polignac number, because none of the positive numbers 2k-88388849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88388794 and 88388803.

It is not an unprimeable number, because it can be changed into a prime (88388249) 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, 317807 + ... + 318084.

It is an arithmetic number, because the mean of its divisors is an integer number (22256220).

Almost surely, 288388849 is an apocalyptic number.

It is an amenable number.

88388849 is a deficient number, since it is larger than the sum of its proper divisors (636031).

88388849 is a wasteful number, since it uses less digits than its factorization.

88388849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636030.

The product of its digits is 3538944, while the sum is 56.

The square root of 88388849 is about 9401.5343960441. The cubic root of 88388849 is about 445.4502012866.

The spelling of 88388849 in words is "eighty-eight million, three hundred eighty-eight thousand, eight hundred forty-nine".

Divisors: 1 139 635891 88388849