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30387707268 = 2234435716273
BaseRepresentation
bin11100010011001111…
…111001110110000100
32220102202211110202120
4130103033321312010
5444213223113033
621543202005540
72124015151512
oct342317716604
986382743676
1030387707268
1111984083266
125a809468b0
132b337c1399
141683b2d4b2
15bccbb01b3
hex7133f9d84

30387707268 has 24 divisors (see below), whose sum is σ = 71064718368. Its totient is φ = 10106368896.

The previous prime is 30387707263. The next prime is 30387707297. The reversal of 30387707268 is 86270778303.

It is a self number, because there is not a number n which added to its sum of digits gives 30387707268.

It is not an unprimeable number, because it can be changed into a prime (30387707263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2852821 + ... + 2863452.

It is an arithmetic number, because the mean of its divisors is an integer number (2961029932).

Almost surely, 230387707268 is an apocalyptic number.

It is an amenable number.

30387707268 is an abundant number, since it is smaller than the sum of its proper divisors (40677011100).

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

30387707268 is a wasteful number, since it uses less digits than its factorization.

30387707268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5716723 (or 5716721 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 30387707268 in words is "thirty billion, three hundred eighty-seven million, seven hundred seven thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 443 886 1329 1772 2658 5316 5716273 11432546 17148819 22865092 34297638 68595276 2532308939 5064617878 7596926817 10129235756 15193853634 30387707268