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75444214 = 237722107
BaseRepresentation
bin1000111111100…
…10111111110110
312020221222000011
410133302333312
5123303203324
611253010434
71604156656
oct437627766
9166858004
1075444214
113964a39a
1221323a1a
1312826861
14a03c366
156953c94
hex47f2ff6

75444214 has 4 divisors (see below), whose sum is σ = 113166324. Its totient is φ = 37722106.

The previous prime is 75444199. The next prime is 75444217. The reversal of 75444214 is 41244457.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75444217) 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 as a sum of consecutive naturals, namely, 18861052 + ... + 18861055.

It is an arithmetic number, because the mean of its divisors is an integer number (28291581).

Almost surely, 275444214 is an apocalyptic number.

75444214 is a deficient number, since it is larger than the sum of its proper divisors (37722110).

75444214 is a wasteful number, since it uses less digits than its factorization.

75444214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37722109.

The product of its digits is 17920, while the sum is 31.

The square root of 75444214 is about 8685.8628817176. The cubic root of 75444214 is about 422.5472822684.

The spelling of 75444214 in words is "seventy-five million, four hundred forty-four thousand, two hundred fourteen".

Divisors: 1 2 37722107 75444214