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2972805607 = 191371142069
BaseRepresentation
bin1011000100110001…
…0110100111100111
321200011212011122101
42301030112213213
522042014234412
61210553312531
7133445300512
oct26114264747
97604764571
102972805607
111296086942
126ab705747
13384b82595
14202b67d79
15125ec1457
hexb13169e7

2972805607 has 8 divisors (see below), whose sum is σ = 3152113200. Its totient is φ = 2795782464.

The previous prime is 2972805593. The next prime is 2972805617. The reversal of 2972805607 is 7065082792.

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 2972805607 - 227 = 2838587879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2972805617) 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, 568432 + ... + 573637.

It is an arithmetic number, because the mean of its divisors is an integer number (394014150).

Almost surely, 22972805607 is an apocalyptic number.

2972805607 is a deficient number, since it is larger than the sum of its proper divisors (179307593).

2972805607 is a wasteful number, since it uses less digits than its factorization.

2972805607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142225.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 2972805607 is about 54523.4408947198. The cubic root of 2972805607 is about 1437.8784355831.

The spelling of 2972805607 in words is "two billion, nine hundred seventy-two million, eight hundred five thousand, six hundred seven".

Divisors: 1 19 137 2603 1142069 21699311 156463453 2972805607