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972380947 = 5928975689
BaseRepresentation
bin111001111101010…
…101101100010011
32111202201001220011
4321331111230103
53442412142242
6240253255351
733045046606
oct7175255423
92452631804
10972380947
1145997a21a
12231794557
131265b9b55
14931dc33d
155a577d17
hex39f55b13

972380947 has 8 divisors (see below), whose sum is σ = 989377200. Its totient is φ = 955401984.

The previous prime is 972380923. The next prime is 972381041. The reversal of 972380947 is 749083279.

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 972380947 - 219 = 971856659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 972380947.

It is not an unprimeable number, because it can be changed into a prime (972380047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168079 + ... + 173767.

It is an arithmetic number, because the mean of its divisors is an integer number (123672150).

Almost surely, 2972380947 is an apocalyptic number.

972380947 is a deficient number, since it is larger than the sum of its proper divisors (16996253).

972380947 is a wasteful number, since it uses less digits than its factorization.

972380947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8645.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 972380947 is about 31183.0233781139. The cubic root of 972380947 is about 990.7075671569.

The spelling of 972380947 in words is "nine hundred seventy-two million, three hundred eighty thousand, nine hundred forty-seven".

Divisors: 1 59 2897 5689 170923 335651 16481033 972380947