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88987972 = 2227538081
BaseRepresentation
bin1010100110111…
…01100101000100
320012110001112211
411103131211010
5140240103342
612455153204
72130246103
oct523354504
9205401484
1088987972
114625aa87
1225975804
1315589408
14bb6603a
157c2bc17
hex54dd944

88987972 has 12 divisors (see below), whose sum is σ = 155804796. Its totient is φ = 44472320.

The previous prime is 88987937. The next prime is 88987973. The reversal of 88987972 is 27978988.

It can be written as a sum of positive squares in 2 ways, for example, as 60000516 + 28987456 = 7746^2 + 5384^2 .

It is not an unprimeable number, because it can be changed into a prime (88987973) 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, 6972 + ... + 15052.

It is an arithmetic number, because the mean of its divisors is an integer number (12983733).

Almost surely, 288987972 is an apocalyptic number.

It is an amenable number.

88987972 is a deficient number, since it is larger than the sum of its proper divisors (66816824).

88987972 is a wasteful number, since it uses less digits than its factorization.

88987972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10838 (or 10836 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 58.

The square root of 88987972 is about 9433.3436277918. The cubic root of 88987972 is about 446.4543955609.

The spelling of 88987972 in words is "eighty-eight million, nine hundred eighty-seven thousand, nine hundred seventy-two".

Divisors: 1 2 4 2753 5506 8081 11012 16162 32324 22246993 44493986 88987972