Search a number
-
+
972719285 = 54710334007
BaseRepresentation
bin111001111110101…
…000010010110101
32111210100021000012
4321332220102311
53443004004120
6240304430005
733050656166
oct7176502265
92453307005
10972719285
1145a09043a
12231918305
131266a7b55
149328976d
155a5e31c5
hex39fa84b5

972719285 has 16 divisors (see below), whose sum is σ = 1193550336. Its totient is φ = 760691328.

The previous prime is 972719281. The next prime is 972719291. The reversal of 972719285 is 582917279.

It is a cyclic number.

It is not a de Polignac number, because 972719285 - 22 = 972719281 is a prime.

It is a super-2 number, since 2×9727192852 = 1892365614821822450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972719281) 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 15 ways as a sum of consecutive naturals, for example, 240752 + ... + 244758.

It is an arithmetic number, because the mean of its divisors is an integer number (74596896).

Almost surely, 2972719285 is an apocalyptic number.

It is an amenable number.

972719285 is a deficient number, since it is larger than the sum of its proper divisors (220831051).

972719285 is a wasteful number, since it uses less digits than its factorization.

972719285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092.

The product of its digits is 635040, while the sum is 50.

The square root of 972719285 is about 31188.4479415055. The cubic root of 972719285 is about 990.8224587361.

The spelling of 972719285 in words is "nine hundred seventy-two million, seven hundred nineteen thousand, two hundred eighty-five".

Divisors: 1 5 47 235 1033 4007 5165 20035 48551 188329 242755 941645 4139231 20696155 194543857 972719285