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30697336272 = 243532227671
BaseRepresentation
bin11100100101101101…
…000010110111010000
32221020100110020220110
4130211231002313100
51000332004230042
622034022241320
72134465024131
oct344555026720
987210406813
1030697336272
11120229340a9
125b48586240
132b829b0c05
1416b2ccbc88
15be9e7209c
hex725b42dd0

30697336272 has 60 divisors (see below), whose sum is σ = 80826292064. Its totient is φ = 10039336320.

The previous prime is 30697336261. The next prime is 30697336297. The reversal of 30697336272 is 27263379603.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 20997 + ... + 248667.

Almost surely, 230697336272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30697336272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40413146032).

30697336272 is an abundant number, since it is smaller than the sum of its proper divisors (50128955792).

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

30697336272 is a wasteful number, since it uses less digits than its factorization.

30697336272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227788 (or 227729 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 48.

The spelling of 30697336272 in words is "thirty billion, six hundred ninety-seven million, three hundred thirty-six thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 53 106 159 212 318 424 636 848 1272 2544 2809 5618 8427 11236 16854 22472 33708 44944 67416 134832 227671 455342 683013 910684 1366026 1821368 2732052 3642736 5464104 10928208 12066563 24133126 36199689 48266252 72399378 96532504 144798756 193065008 289597512 579195024 639527839 1279055678 1918583517 2558111356 3837167034 5116222712 7674334068 10232445424 15348668136 30697336272