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1012244231 = 7114256961
BaseRepresentation
bin111100010101011…
…001111100000111
32121112201100001002
4330111121330013
54033113303411
6244235523515
734040635235
oct7425317407
92545640032
101012244231
1147a427089
12242bb959b
131319363ab
1498617955
155dcee33b
hex3c559f07

1012244231 has 4 divisors (see below), whose sum is σ = 1026501264. Its totient is φ = 997987200.

The previous prime is 1012244227. The next prime is 1012244239. The reversal of 1012244231 is 1324422101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1324422101 = 10312858467.

It is a cyclic number.

It is not a de Polignac number, because 1012244231 - 22 = 1012244227 is a prime.

It is a super-2 number, since 2×10122442312 = 2049276766385562722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012244239) 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, 7128410 + ... + 7128551.

It is an arithmetic number, because the mean of its divisors is an integer number (256625316).

Almost surely, 21012244231 is an apocalyptic number.

1012244231 is a deficient number, since it is larger than the sum of its proper divisors (14257033).

1012244231 is an equidigital number, since it uses as much as digits as its factorization.

1012244231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14257032.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1012244231 is about 31815.7858774540. The cubic root of 1012244231 is about 1004.0648648192.

Adding to 1012244231 its reverse (1324422101), we get a palindrome (2336666332).

The spelling of 1012244231 in words is "one billion, twelve million, two hundred forty-four thousand, two hundred thirty-one".

Divisors: 1 71 14256961 1012244231