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88240000 = 27541103
BaseRepresentation
bin1010100001001…
…10111110000000
320011001001112011
411100212332000
5140042140000
612431142304
72121012322
oct520467600
9204031464
1088240000
114589a022
1225674994
1315386b24
14ba0d612
157b302ba
hex5426f80

88240000 has 80 divisors (see below), whose sum is σ = 219867120. Its totient is φ = 35264000.

The previous prime is 88239973. The next prime is 88240001. The reversal of 88240000 is 4288.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88240001) 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 9 ways as a sum of consecutive naturals, for example, 79449 + ... + 80551.

It is an arithmetic number, because the mean of its divisors is an integer number (2748339).

Almost surely, 288240000 is an apocalyptic number.

88240000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109933560).

88240000 is an abundant number, since it is smaller than the sum of its proper divisors (131627120).

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

88240000 is an equidigital number, since it uses as much as digits as its factorization.

88240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137 (or 1110 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 88240000 is about 9393.6148526539. The cubic root of 88240000 is about 445.2000110863.

Adding to 88240000 its reverse (4288), we get a palindrome (88244288).

The spelling of 88240000 in words is "eighty-eight million, two hundred forty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 625 640 800 1000 1103 1250 1600 2000 2206 2500 3200 4000 4412 5000 5515 8000 8824 10000 11030 16000 17648 20000 22060 27575 35296 40000 44120 55150 70592 80000 88240 110300 137875 141184 176480 220600 275750 352960 441200 551500 689375 705920 882400 1103000 1378750 1764800 2206000 2757500 3529600 4412000 5515000 8824000 11030000 17648000 22060000 44120000 88240000