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75384311 = 2912132143
BaseRepresentation
bin1000111111001…
…00010111110111
312020211220211112
410133210113313
5123244244221
611251425235
71603520222
oct437442767
9166756745
1075384311
1139609392
12212b521b
1312805502
14a0245b9
15694115b
hex47e45f7

75384311 has 8 divisors (see below), whose sum is σ = 78084480. Its totient is φ = 72690912.

The previous prime is 75384299. The next prime is 75384319. The reversal of 75384311 is 11348357.

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

It is a cyclic number.

It is not a de Polignac number, because 75384311 - 26 = 75384247 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 (75384319) 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, 34106 + ... + 36248.

It is an arithmetic number, because the mean of its divisors is an integer number (9760560).

Almost surely, 275384311 is an apocalyptic number.

75384311 is a deficient number, since it is larger than the sum of its proper divisors (2700169).

75384311 is a wasteful number, since it uses less digits than its factorization.

75384311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385.

The product of its digits is 10080, while the sum is 32.

The square root of 75384311 is about 8682.4138924610. The cubic root of 75384311 is about 422.4354179265.

The spelling of 75384311 in words is "seventy-five million, three hundred eighty-four thousand, three hundred eleven".

Divisors: 1 29 1213 2143 35177 62147 2599459 75384311