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88689612 = 223112173593
BaseRepresentation
bin1010100100101…
…00101111001100
320011212220021110
411102110233030
5140201031422
612444532020
72124564204
oct522245714
9204786243
1088689612
1146076900
1225851010
13154b367b
14bac9404
157bbd60c
hex5494bcc

88689612 has 72 divisors (see below), whose sum is σ = 240913008. Its totient is φ = 25287680.

The previous prime is 88689589. The next prime is 88689613. The reversal of 88689612 is 21698688.

It is not an unprimeable number, because it can be changed into a prime (88689613) 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 23 ways as a sum of consecutive naturals, for example, 22888 + ... + 26480.

It is an arithmetic number, because the mean of its divisors is an integer number (3346014).

Almost surely, 288689612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88689612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120456504).

88689612 is an abundant number, since it is smaller than the sum of its proper divisors (152223396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88689612 is a wasteful number, since it uses less digits than its factorization.

88689612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639 (or 3626 counting only the distinct ones).

The product of its digits is 331776, while the sum is 48.

The square root of 88689612 is about 9417.5162330627. The cubic root of 88689612 is about 445.9548775629.

The spelling of 88689612 in words is "eighty-eight million, six hundred eighty-nine thousand, six hundred twelve".

Divisors: 1 2 3 4 6 11 12 17 22 33 34 44 51 66 68 102 121 132 187 204 242 363 374 484 561 726 748 1122 1452 2057 2244 3593 4114 6171 7186 8228 10779 12342 14372 21558 24684 39523 43116 61081 79046 118569 122162 158092 183243 237138 244324 366486 434753 474276 671891 732972 869506 1304259 1343782 1739012 2015673 2608518 2687564 4031346 5217036 7390801 8062692 14781602 22172403 29563204 44344806 88689612