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30582742872 = 23311115843723
BaseRepresentation
bin11100011110110111…
…111001111101011000
32220221100211022022110
4130132313321331120
51000113140232442
622014410152320
72131604011443
oct343667717530
986840738273
1030582742872
1111a74185410
125b161226a0
132b6502ab76
1416a19bc65a
15bded8869c
hex71edf9f58

30582742872 has 32 divisors (see below), whose sum is σ = 83407481280. Its totient is φ = 9267497760.

The previous prime is 30582742789. The next prime is 30582742933. The reversal of 30582742872 is 27824728503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57921598 + ... + 57922125.

It is an arithmetic number, because the mean of its divisors is an integer number (2606483790).

Almost surely, 230582742872 is an apocalyptic number.

It is an amenable number.

30582742872 is an abundant number, since it is smaller than the sum of its proper divisors (52824738408).

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

30582742872 is a wasteful number, since it uses less digits than its factorization.

30582742872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115843743 (or 115843739 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 30582742872 in words is "thirty billion, five hundred eighty-two million, seven hundred forty-two thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 115843723 231687446 347531169 463374892 695062338 926749784 1274280953 1390124676 2548561906 2780249352 3822842859 5097123812 7645685718 10194247624 15291371436 30582742872