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75144414 = 2331340013
BaseRepresentation
bin1000111101010…
…01110011011110
312020101201202110
410132221303132
5123214110124
611242334450
71601500632
oct436516336
9166351673
1075144414
1139465124
12211ba426
1312750267
149da0dc2
1568e5029
hex47a9cde

75144414 has 16 divisors (see below), whose sum is σ = 150772752. Its totient is φ = 24967488.

The previous prime is 75144413. The next prime is 75144451. The reversal of 75144414 is 41444157.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75144413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18129 + ... + 21884.

It is an arithmetic number, because the mean of its divisors is an integer number (9423297).

Almost surely, 275144414 is an apocalyptic number.

75144414 is an abundant number, since it is smaller than the sum of its proper divisors (75628338).

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

75144414 is a wasteful number, since it uses less digits than its factorization.

75144414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40331.

The product of its digits is 8960, while the sum is 30.

The square root of 75144414 is about 8668.5877742571. The cubic root of 75144414 is about 421.9868335178.

The spelling of 75144414 in words is "seventy-five million, one hundred forty-four thousand, four hundred fourteen".

Divisors: 1 2 3 6 313 626 939 1878 40013 80026 120039 240078 12524069 25048138 37572207 75144414