Search a number
-
+
1031214443 = 7147316349
BaseRepresentation
bin111101011101110…
…001010101101011
32122212102010021112
4331131301111223
54102442330233
6250154300535
734361115050
oct7535612553
92585363245
101031214443
1148a103746
1224942774b
13135848b7c
149ad55027
15607ea048
hex3d77156b

1031214443 has 4 divisors (see below), whose sum is σ = 1178530800. Its totient is φ = 883898088.

The previous prime is 1031214439. The next prime is 1031214461. The reversal of 1031214443 is 3444121301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3444121301 = 3823790073.

It is a cyclic number.

It is not a de Polignac number, because 1031214443 - 22 = 1031214439 is a prime.

It is a super-3 number, since 3×10312144433 (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031214463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73658168 + ... + 73658181.

It is an arithmetic number, because the mean of its divisors is an integer number (294632700).

Almost surely, 21031214443 is an apocalyptic number.

1031214443 is a deficient number, since it is larger than the sum of its proper divisors (147316357).

1031214443 is an equidigital number, since it uses as much as digits as its factorization.

1031214443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147316356.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1031214443 is about 32112.5278201514. The cubic root of 1031214443 is about 1010.2983933557.

Adding to 1031214443 its reverse (3444121301), we get a palindrome (4475335744).

The spelling of 1031214443 in words is "one billion, thirty-one million, two hundred fourteen thousand, four hundred forty-three".

Divisors: 1 7 147316349 1031214443