Search a number
-
+
31949742801 = 329367238423
BaseRepresentation
bin11101110000010110…
…100110001011010001
310001110122002002200110
4131300112212023101
51010413113232201
622402201511533
72210513222124
oct356026461321
9101418062613
1031949742801
1112605884719
126237aa25a9
1330222c3c72
1417913803bb
15c6edb06d6
hex7705a62d1

31949742801 has 8 divisors (see below), whose sum is σ = 44068610880. Its totient is φ = 20565351632.

The previous prime is 31949742751. The next prime is 31949742817. The reversal of 31949742801 is 10824794913.

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 31949742801 - 218 = 31949480657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31949742821) 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, 183619125 + ... + 183619298.

It is an arithmetic number, because the mean of its divisors is an integer number (5508576360).

Almost surely, 231949742801 is an apocalyptic number.

It is an amenable number.

31949742801 is a deficient number, since it is larger than the sum of its proper divisors (12118868079).

31949742801 is a wasteful number, since it uses less digits than its factorization.

31949742801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367238455.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 31949742801 in words is "thirty-one billion, nine hundred forty-nine million, seven hundred forty-two thousand, eight hundred one".

Divisors: 1 3 29 87 367238423 1101715269 10649914267 31949742801