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88400088 = 23327434079
BaseRepresentation
bin1010100010011…
…10000011011000
320011100012010100
411101032003120
5140112300323
612434415400
72122250130
oct521160330
9204305110
1088400088
1145999327
1225731560
131541195a
14ba51ac0
157b62943
hex544e0d8

88400088 has 96 divisors (see below), whose sum is σ = 280051200. Its totient is φ = 24663744.

The previous prime is 88400087. The next prime is 88400089. The reversal of 88400088 is 88000488.

It is an interprime number because it is at equal distance from previous prime (88400087) and next prime (88400089).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88400087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19633 + ... + 23711.

It is an arithmetic number, because the mean of its divisors is an integer number (2917200).

Almost surely, 288400088 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 88400088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140025600).

88400088 is an abundant number, since it is smaller than the sum of its proper divisors (191651112).

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

88400088 is a wasteful number, since it uses less digits than its factorization.

88400088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141 (or 4134 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 88400088 is about 9402.1320986253. The cubic root of 88400088 is about 445.4690807520.

The spelling of 88400088 in words is "eighty-eight million, four hundred thousand, eighty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 43 56 63 72 84 86 126 129 168 172 252 258 301 344 387 504 516 602 774 903 1032 1204 1548 1806 2408 2709 3096 3612 4079 5418 7224 8158 10836 12237 16316 21672 24474 28553 32632 36711 48948 57106 73422 85659 97896 114212 146844 171318 175397 228424 256977 293688 342636 350794 513954 526191 685272 701588 1027908 1052382 1227779 1403176 1578573 2055816 2104764 2455558 3157146 3683337 4209528 4911116 6314292 7366674 9822232 11050011 12628584 14733348 22100022 29466696 44200044 88400088