Search a number
-
+
31032242976 = 2537293121657
BaseRepresentation
bin11100111001101010…
…100111001100100000
32222002200122021112110
4130321222213030200
51002023223233401
622131144355320
72146002466410
oct347152471440
988080567473
1031032242976
111218498a4a9
126020775b40
132c071b1167
14170558a640
15c195789d6
hex739aa7320

31032242976 has 288 divisors, whose sum is σ = 99573909120. Its totient is φ = 8279470080.

The previous prime is 31032242957. The next prime is 31032242999. The reversal of 31032242976 is 67924223013.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 18727140 + ... + 18728796.

It is an arithmetic number, because the mean of its divisors is an integer number (345742740).

Almost surely, 231032242976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31032242976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49786954560).

31032242976 is an abundant number, since it is smaller than the sum of its proper divisors (68541666144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31032242976 is a wasteful number, since it uses less digits than its factorization.

31032242976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768 (or 1729 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

Adding to 31032242976 its reverse (67924223013), we get a palindrome (98956465989).

The spelling of 31032242976 in words is "thirty-one billion, thirty-two million, two hundred forty-two thousand, nine hundred seventy-six".