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88428887 = 798912577
BaseRepresentation
bin1010100010101…
…01000101010111
320011101122121222
411101111011113
5140114211022
612435200555
72122430111
oct521250527
9204348558
1088428887
1145a08a28
122574615b
1315421ab1
14ba5c3b1
157b6b242
hex5455157

88428887 has 8 divisors (see below), whose sum is σ = 90561600. Its totient is φ = 86321664.

The previous prime is 88428877. The next prime is 88428889. The reversal of 88428887 is 78882488.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 88428887 - 24 = 88428871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88428889) 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 7 ways as a sum of consecutive naturals, for example, 743 + ... + 13319.

It is an arithmetic number, because the mean of its divisors is an integer number (11320200).

Almost surely, 288428887 is an apocalyptic number.

88428887 is a deficient number, since it is larger than the sum of its proper divisors (2132713).

88428887 is a wasteful number, since it uses less digits than its factorization.

88428887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12745.

The product of its digits is 1835008, while the sum is 53.

The square root of 88428887 is about 9403.6634882369. The cubic root of 88428887 is about 445.5174505046.

The spelling of 88428887 in words is "eighty-eight million, four hundred twenty-eight thousand, eight hundred eighty-seven".

Divisors: 1 79 89 7031 12577 993583 1119353 88428887