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744427087 = 19313734159
BaseRepresentation
bin101100010111110…
…000111001001111
31220212202210222121
4230113300321033
53011033131322
6201511353411
724306345235
oct5427607117
91825683877
10744427087
113522340a8
12189382867
13bb2c6001
1470c20955
154554aec7
hex2c5f0e4f

744427087 has 16 divisors (see below), whose sum is σ = 830771200. Its totient is φ = 664031520.

The previous prime is 744427009. The next prime is 744427091. The reversal of 744427087 is 780724447.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 744427087 - 211 = 744425039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744427097) 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 15 ways as a sum of consecutive naturals, for example, 4714 + ... + 38872.

It is an arithmetic number, because the mean of its divisors is an integer number (51923200).

Almost surely, 2744427087 is an apocalyptic number.

744427087 is a deficient number, since it is larger than the sum of its proper divisors (86344113).

744427087 is a wasteful number, since it uses less digits than its factorization.

744427087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34246.

The product of its (nonzero) digits is 351232, while the sum is 43.

The square root of 744427087 is about 27284.1911553192. The cubic root of 744427087 is about 906.3043316963.

The spelling of 744427087 in words is "seven hundred forty-four million, four hundred twenty-seven thousand, eighty-seven".

Divisors: 1 19 31 37 589 703 1147 21793 34159 649021 1058929 1263883 20119651 24013777 39180373 744427087