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88889940 = 223351723421
BaseRepresentation
bin1010100110001…
…01101001010100
320012021002002000
411103011221110
5140223434230
612453115300
72126360226
oct523055124
9205232060
1088889940
11461a3367
1225928b30
13155538c9
14bb3c416
157c0cb60
hex54c5a54

88889940 has 192 divisors, whose sum is σ = 306270720. Its totient is φ = 21288960.

The previous prime is 88889939. The next prime is 88890007. The reversal of 88889940 is 4998888.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 210930 + ... + 211350.

It is an arithmetic number, because the mean of its divisors is an integer number (1595160).

Almost surely, 288889940 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 88889940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153135360).

88889940 is an abundant number, since it is smaller than the sum of its proper divisors (217380780).

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

88889940 is a wasteful number, since it uses less digits than its factorization.

88889940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The square root of 88889940 is about 9428.1461592404. The cubic root of 88889940 is about 446.2903925022.

The spelling of 88889940 in words is "eighty-eight million, eight hundred eighty-nine thousand, nine hundred forty".