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140214441 = 346738147
BaseRepresentation
bin10000101101110…
…00000010101001
3100202211122001110
420112320002221
5241343330231
621525140533
73321542313
oct1026700251
9322748043
10140214441
1172169204
123ab5a749
1323083b33
141489c7b3
15c49a046
hex85b80a9

140214441 has 4 divisors (see below), whose sum is σ = 186952592. Its totient is φ = 93476292.

The previous prime is 140214407. The next prime is 140214467. The reversal of 140214441 is 144412041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 144412041 = 348137347.

It is not a de Polignac number, because 140214441 - 26 = 140214377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140214401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23369071 + ... + 23369076.

It is an arithmetic number, because the mean of its divisors is an integer number (46738148).

Almost surely, 2140214441 is an apocalyptic number.

It is an amenable number.

140214441 is a deficient number, since it is larger than the sum of its proper divisors (46738151).

140214441 is an equidigital number, since it uses as much as digits as its factorization.

140214441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46738150.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 140214441 is about 11841.2178849981. The cubic root of 140214441 is about 519.5143900888.

Adding to 140214441 its reverse (144412041), we get a palindrome (284626482).

The spelling of 140214441 in words is "one hundred forty million, two hundred fourteen thousand, four hundred forty-one".

Divisors: 1 3 46738147 140214441