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75412271 = 117439227
BaseRepresentation
bin1000111111010…
…11001100101111
312020220100012002
410133223030233
5123301143041
611252202515
71603664564
oct437531457
9166810162
1075412271
11396283a0
122130943b
131281515c
14a03086b
15694959b
hex47eb32f

75412271 has 8 divisors (see below), whose sum is σ = 82387584. Its totient is φ = 68456920.

The previous prime is 75412247. The next prime is 75412277. The reversal of 75412271 is 17221457.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-75412271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75412277) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3560 + ... + 12786.

It is an arithmetic number, because the mean of its divisors is an integer number (10298448).

Almost surely, 275412271 is an apocalyptic number.

75412271 is a deficient number, since it is larger than the sum of its proper divisors (6975313).

75412271 is a wasteful number, since it uses less digits than its factorization.

75412271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9981.

The product of its digits is 3920, while the sum is 29.

The square root of 75412271 is about 8684.0238944858. The cubic root of 75412271 is about 422.4876384932.

The spelling of 75412271 in words is "seventy-five million, four hundred twelve thousand, two hundred seventy-one".

Divisors: 1 11 743 8173 9227 101497 6855661 75412271