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972972930 = 23556956999
BaseRepresentation
bin111001111111100…
…110001110000010
32111210211010221110
4321333212032002
53443040113210
6240314104150
733053063526
oct7177461602
92453733843
10972972930
1145a243a66
12231a1b056
13126766437
1493313d86
155a643420
hex39fe6382

972972930 has 32 divisors (see below), whose sum is σ = 2339280000. Its totient is φ = 258998912.

The previous prime is 972972907. The next prime is 972972941. The reversal of 972972930 is 39279279.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 972972930.

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 15 ways as a sum of consecutive naturals, for example, 11430 + ... + 45569.

It is an arithmetic number, because the mean of its divisors is an integer number (73102500).

Almost surely, 2972972930 is an apocalyptic number.

972972930 is an abundant number, since it is smaller than the sum of its proper divisors (1366307070).

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

972972930 is a wasteful number, since it uses less digits than its factorization.

972972930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57578.

The product of its (nonzero) digits is 428652, while the sum is 48.

The square root of 972972930 is about 31192.5140057675. The cubic root of 972972930 is about 990.9085731047.

The spelling of 972972930 in words is "nine hundred seventy-two million, nine hundred seventy-two thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 569 1138 1707 2845 3414 5690 8535 17070 56999 113998 170997 284995 341994 569990 854985 1709970 32432431 64864862 97297293 162162155 194594586 324324310 486486465 972972930