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88816481 = 136832037
BaseRepresentation
bin1010100101100…
…11101101100001
320012010100022022
411102303231201
5140214111411
612451351225
72125633115
oct522635541
9205110268
1088816481
1146153156
12258b2515
1315529340
14bb1d745
157be5edb
hex54b3b61

88816481 has 4 divisors (see below), whose sum is σ = 95648532. Its totient is φ = 81984432.

The previous prime is 88816451. The next prime is 88816487. The reversal of 88816481 is 18461888.

It is a happy number.

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 39942400 + 48874081 = 6320^2 + 6991^2 .

It is a cyclic number.

It is not a de Polignac number, because 88816481 - 218 = 88554337 is a prime.

It is a super-2 number, since 2×888164812 = 15776734594446722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88816487) 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, 3416006 + ... + 3416031.

It is an arithmetic number, because the mean of its divisors is an integer number (23912133).

Almost surely, 288816481 is an apocalyptic number.

It is an amenable number.

88816481 is a deficient number, since it is larger than the sum of its proper divisors (6832051).

88816481 is a wasteful number, since it uses less digits than its factorization.

88816481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6832050.

The product of its digits is 98304, while the sum is 44.

The square root of 88816481 is about 9424.2496253017. The cubic root of 88816481 is about 446.1674199024.

The spelling of 88816481 in words is "eighty-eight million, eight hundred sixteen thousand, four hundred eighty-one".

Divisors: 1 13 6832037 88816481