Search a number
-
+
31330122001 = 1719911178291
BaseRepresentation
bin11101001011011010…
…111011100100010001
32222212110011002201221
4131023122323210101
51003131002401001
622220505125041
72156250433363
oct351332734421
988773132657
1031330122001
1112318045412
1260a4489781
132c53b18739
141732d6ad33
15c357b91a1
hex74b6bb911

31330122001 has 16 divisors (see below), whose sum is σ = 33373641600. Its totient is φ = 29309195520.

The previous prime is 31330121971. The next prime is 31330122011. The reversal of 31330122001 is 10022103313.

It is a cyclic number.

It is not a de Polignac number, because 31330122001 - 225 = 31296567569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31330122011) 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 15 ways as a sum of consecutive naturals, for example, 3774666 + ... + 3782956.

It is an arithmetic number, because the mean of its divisors is an integer number (2085852600).

Almost surely, 231330122001 is an apocalyptic number.

It is an amenable number.

31330122001 is a deficient number, since it is larger than the sum of its proper divisors (2043519599).

31330122001 is a wasteful number, since it uses less digits than its factorization.

31330122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9624.

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

Adding to 31330122001 its reverse (10022103313), we get a palindrome (41352225314).

The spelling of 31330122001 in words is "thirty-one billion, three hundred thirty million, one hundred twenty-two thousand, one".

Divisors: 1 17 199 1117 3383 8291 18989 140947 222283 1649909 3778811 9261047 28048453 157437799 1842948353 31330122001