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75814020 = 22325421189
BaseRepresentation
bin1001000010011…
…01010010000100
312021122202021200
410201031102010
5123402022040
611304542500
71610260062
oct441152204
9167582250
1075814020
1139882217
1221481a30
1312925c89
14a0d7032
1569c8630
hex484d484

75814020 has 36 divisors (see below), whose sum is σ = 229969740. Its totient is φ = 20217024.

The previous prime is 75813989. The next prime is 75814061. The reversal of 75814020 is 2041857.

75814020 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 2 ways, for example, as 50893956 + 24920064 = 7134^2 + 4992^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210415 + ... + 210774.

Almost surely, 275814020 is an apocalyptic number.

It is an amenable number.

75814020 is an abundant number, since it is smaller than the sum of its proper divisors (154155720).

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

75814020 is a wasteful number, since it uses less digits than its factorization.

75814020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421204 (or 421199 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 75814020 is about 8707.1246689134. The cubic root of 75814020 is about 423.2365593301.

Adding to 75814020 its reverse (2041857), we get a palindrome (77855877).

The spelling of 75814020 in words is "seventy-five million, eight hundred fourteen thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 421189 842378 1263567 1684756 2105945 2527134 3790701 4211890 5054268 6317835 7581402 8423780 12635670 15162804 18953505 25271340 37907010 75814020