Search a number
-
+
2231013031 = 13396743261
BaseRepresentation
bin1000010011111010…
…1000111010100111
312202111001012112021
42010332220322213
514032114404111
61005214204011
7106200204112
oct20476507247
95674035467
102231013031
11a45392125
125231b3607
1329729c770
14172431579
15d0ce5d71
hex84fa8ea7

2231013031 has 8 divisors (see below), whose sum is σ = 2403290624. Its totient is φ = 2058829920.

The previous prime is 2231013011. The next prime is 2231013091. The reversal of 2231013031 is 1303101322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2231013031 - 25 = 2231012999 is a prime.

It is a super-3 number, since 3×22310130313 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231012996 and 2231013014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231013011) 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 7 ways as a sum of consecutive naturals, for example, 29941 + ... + 73201.

It is an arithmetic number, because the mean of its divisors is an integer number (300411328).

Almost surely, 22231013031 is an apocalyptic number.

2231013031 is a deficient number, since it is larger than the sum of its proper divisors (172277593).

2231013031 is a wasteful number, since it uses less digits than its factorization.

2231013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47241.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2231013031 is about 47233.6006567359. The cubic root of 2231013031 is about 1306.6743589964.

Adding to 2231013031 its reverse (1303101322), we get a palindrome (3534114353).

The spelling of 2231013031 in words is "two billion, two hundred thirty-one million, thirteen thousand, thirty-one".

Divisors: 1 13 3967 43261 51571 562393 171616387 2231013031