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75104217 = 328344913
BaseRepresentation
bin1000111100111…
…11111111011001
312020022200121200
410132133333121
5123211313332
611241424413
71601242506
oct436377731
9166280550
1075104217
1139437a01
122119b109
1312737b86
149d904ad
1568d817c
hex479ffd9

75104217 has 6 divisors (see below), whose sum is σ = 108483882. Its totient is φ = 50069472.

The previous prime is 75104179. The next prime is 75104221. The reversal of 75104217 is 71240157.

It can be written as a sum of positive squares in only one way, i.e., 38489616 + 36614601 = 6204^2 + 6051^2 .

It is not a de Polignac number, because 75104217 - 26 = 75104153 is a prime.

It is a super-2 number, since 2×751042172 = 11281286822366178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75104257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4172448 + ... + 4172465.

It is an arithmetic number, because the mean of its divisors is an integer number (18080647).

Almost surely, 275104217 is an apocalyptic number.

It is an amenable number.

75104217 is a deficient number, since it is larger than the sum of its proper divisors (33379665).

75104217 is a wasteful number, since it uses less digits than its factorization.

75104217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8344919 (or 8344916 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 75104217 is about 8666.2689203601. The cubic root of 75104217 is about 421.9115756272.

The spelling of 75104217 in words is "seventy-five million, one hundred four thousand, two hundred seventeen".

Divisors: 1 3 9 8344913 25034739 75104217