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30712385834 = 21337531673607
BaseRepresentation
bin11100100110100110…
…011101000100101010
32221021101202212000122
4130212212131010222
51000344332321314
622035321003242
72135036654324
oct344646350452
987241685018
1030712385834
1112030383059
125b51623522
132b85b4cc90
1416b4cc8614
15beb44628e
hex72699d12a

30712385834 has 64 divisors (see below), whose sum is σ = 52239914496. Its totient is φ = 13446860544.

The previous prime is 30712385791. The next prime is 30712385839. The reversal of 30712385834 is 43858321703.

It is not an unprimeable number, because it can be changed into a prime (30712385839) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 8512859 + ... + 8516465.

It is an arithmetic number, because the mean of its divisors is an integer number (816248664).

Almost surely, 230712385834 is an apocalyptic number.

30712385834 is a deficient number, since it is larger than the sum of its proper divisors (21527528662).

30712385834 is a wasteful number, since it uses less digits than its factorization.

30712385834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 30712385834 in words is "thirty billion, seven hundred twelve million, three hundred eighty-five thousand, eight hundred thirty-four".

Divisors: 1 2 13 26 37 53 74 106 167 334 481 689 962 1378 1961 2171 3607 3922 4342 6179 7214 8851 12358 17702 25493 46891 50986 80327 93782 115063 133459 160654 191171 230126 266918 327487 382342 602369 654974 1204738 1734967 2485223 3469934 4257331 4970446 7073327 7830797 8514662 14146654 15661594 22287653 31925557 44575306 63851114 91953251 183906502 289739489 415032241 579478978 830064482 1181245609 2362491218 15356192917 30712385834