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214011031 = 13103277577
BaseRepresentation
bin11001100000110…
…00110010010111
3112220200212221111
430300120302113
5414241323111
633122555451
75206030603
oct1460306227
9486625844
10214011031
11aa892723
125b808b87
1335451760
14205cc503
1513bc5a21
hexcc18c97

214011031 has 16 divisors (see below), whose sum is σ = 233955904. Its totient is φ = 194586624.

The previous prime is 214011023. The next prime is 214011053. The reversal of 214011031 is 130110412.

It is a cyclic number.

It is not a de Polignac number, because 214011031 - 23 = 214011023 is a prime.

It is a super-2 number, since 2×2140110312 = 91601442779365922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (314011031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370615 + ... + 371191.

It is an arithmetic number, because the mean of its divisors is an integer number (14622244).

Almost surely, 2214011031 is an apocalyptic number.

214011031 is a deficient number, since it is larger than the sum of its proper divisors (19944873).

214011031 is a wasteful number, since it uses less digits than its factorization.

214011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 214011031 is about 14629.1158652873. The cubic root of 214011031 is about 598.1526802236.

Adding to 214011031 its reverse (130110412), we get a palindrome (344121443).

The spelling of 214011031 in words is "two hundred fourteen million, eleven thousand, thirty-one".

Divisors: 1 13 103 277 577 1339 3601 7501 28531 59431 159829 370903 772603 2077777 16462387 214011031