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89019940000 = 255419317739
BaseRepresentation
bin101001011101000000…
…0000111110010100000
322111202221201111112211
41102322000013302200
52424303101040000
6104521210131504
76300666001525
oct1227200076240
9274687644484
1089019940000
1134831487552
1215304720b94
138518a77114
144446aa114c
1524b02d87ba
hex14ba007ca0

89019940000 has 240 divisors, whose sum is σ = 231568999200. Its totient is φ = 33581952000.

The previous prime is 89019939991. The next prime is 89019940001. The reversal of 89019940000 is 4991098.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (89019940001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 120459631 + ... + 120460369.

It is an arithmetic number, because the mean of its divisors is an integer number (964870830).

Almost surely, 289019940000 is an apocalyptic number.

89019940000 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 89019940000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115784499600).

89019940000 is an abundant number, since it is smaller than the sum of its proper divisors (142549059200).

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

89019940000 is a wasteful number, since it uses less digits than its factorization.

89019940000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 89019940000 in words is "eighty-nine billion, nineteen million, nine hundred forty thousand".