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75468220 = 2253773411
BaseRepresentation
bin1000111111110…
…00110110111100
312021000011221021
410133320312330
5123304440340
611253313524
71604316652
oct437706674
9167004837
1075468220
1139666433
12213358a4
1312834769
14a046dd2
15695ae4a
hex47f8dbc

75468220 has 12 divisors (see below), whose sum is σ = 158483304. Its totient is φ = 30187280.

The previous prime is 75468199. The next prime is 75468241. The reversal of 75468220 is 2286457.

It is an interprime number because it is at equal distance from previous prime (75468199) and next prime (75468241).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886686 + ... + 1886725.

It is an arithmetic number, because the mean of its divisors is an integer number (13206942).

Almost surely, 275468220 is an apocalyptic number.

It is an amenable number.

75468220 is an abundant number, since it is smaller than the sum of its proper divisors (83015084).

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

75468220 is a wasteful number, since it uses less digits than its factorization.

75468220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3773420 (or 3773418 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 75468220 is about 8687.2446725069. The cubic root of 75468220 is about 422.5920950460.

The spelling of 75468220 in words is "seventy-five million, four hundred sixty-eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 3773411 7546822 15093644 18867055 37734110 75468220