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431042027 = 1333157079
BaseRepresentation
bin11001101100010…
…010110111101011
31010001002012111112
4121230102313223
51340321321102
6110434420535
713452540203
oct3154226753
91101065445
10431042027
11201348289
1210043174b
136b3bc970
1441365403
1527c96252
hex19b12deb

431042027 has 4 divisors (see below), whose sum is σ = 464199120. Its totient is φ = 397884936.

The previous prime is 431041981. The next prime is 431042047. The reversal of 431042027 is 720240134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 720240134 = 2360120067.

It is a cyclic number.

It is not a de Polignac number, because 431042027 - 212 = 431037931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431041993 and 431042011.

It is not an unprimeable number, because it can be changed into a prime (431042047) 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 3 ways as a sum of consecutive naturals, for example, 16578527 + ... + 16578552.

It is an arithmetic number, because the mean of its divisors is an integer number (116049780).

Almost surely, 2431042027 is an apocalyptic number.

431042027 is a deficient number, since it is larger than the sum of its proper divisors (33157093).

431042027 is a wasteful number, since it uses less digits than its factorization.

431042027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33157092.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 431042027 is about 20761.5516520322. The cubic root of 431042027 is about 755.3934338198.

The spelling of 431042027 in words is "four hundred thirty-one million, forty-two thousand, twenty-seven".

Divisors: 1 13 33157079 431042027