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88443420 = 223513149761
BaseRepresentation
bin1010100010110…
…00101000011100
320011102101120020
411101120220130
5140120142140
612435352140
72122520352
oct521305034
9204371506
1088443420
1145a1893a
1225752650
13154285b0
14ba637d2
157b706d0
hex5458a1c

88443420 has 96 divisors (see below), whose sum is σ = 268833600. Its totient is φ = 21596160.

The previous prime is 88443413. The next prime is 88443449. The reversal of 88443420 is 2434488.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 115840 + ... + 116600.

It is an arithmetic number, because the mean of its divisors is an integer number (2800350).

Almost surely, 288443420 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 88443420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134416800).

88443420 is an abundant number, since it is smaller than the sum of its proper divisors (180390180).

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

88443420 is a wasteful number, since it uses less digits than its factorization.

88443420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 88443420 is about 9404.4361872470. The cubic root of 88443420 is about 445.5418556157.

The spelling of 88443420 in words is "eighty-eight million, four hundred forty-three thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 149 156 195 260 298 390 447 596 745 761 780 894 1490 1522 1788 1937 2235 2283 2980 3044 3805 3874 4470 4566 5811 7610 7748 8940 9132 9685 9893 11415 11622 15220 19370 19786 22830 23244 29055 29679 38740 39572 45660 49465 58110 59358 98930 113389 116220 118716 148395 197860 226778 296790 340167 453556 566945 593580 680334 1133890 1360668 1474057 1700835 2267780 2948114 3401670 4422171 5896228 6803340 7370285 8844342 14740570 17688684 22110855 29481140 44221710 88443420