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75087012 = 2237211131947
BaseRepresentation
bin1000111100110…
…11110010100100
312020021211000110
410132123302210
5123210241022
611241213020
71601141400
oct436336244
9166254013
1075087012
1139425a90
1221191170
13127300b0
149d88100
1568d300c
hex479bca4

75087012 has 288 divisors, whose sum is σ = 257402880. Its totient is φ = 16692480.

The previous prime is 75087007. The next prime is 75087037. The reversal of 75087012 is 21078057.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1597573 + ... + 1597619.

It is an arithmetic number, because the mean of its divisors is an integer number (893760).

Almost surely, 275087012 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 75087012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128701440).

75087012 is an abundant number, since it is smaller than the sum of its proper divisors (182315868).

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

75087012 is a wasteful number, since it uses less digits than its factorization.

75087012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 75087012 is about 8665.2762217947. The cubic root of 75087012 is about 421.8793557630.

The spelling of 75087012 in words is "seventy-five million, eighty-seven thousand, twelve".