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385806018180 = 223511718233163
BaseRepresentation
bin1011001110100111101…
…01001010011010000100
31100212211111002101101110
411213103311022122010
522310112320040210
6453123053525020
736605430021552
oct5472365123204
91325744071343
10385806018180
1113968a491810
12629317a3770
132a4c5aa152b
141495d032bd2
15a080749420
hex59d3d4a684

385806018180 has 96 divisors (see below), whose sum is σ = 1195060220928. Its totient is φ = 92211414400.

The previous prime is 385806018163. The next prime is 385806018211. The reversal of 385806018180 is 81810608583.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4069722 + ... + 4163441.

It is an arithmetic number, because the mean of its divisors is an integer number (12448543968).

Almost surely, 2385806018180 is an apocalyptic number.

385806018180 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

385806018180 is an abundant number, since it is smaller than the sum of its proper divisors (809254202748).

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

385806018180 is a wasteful number, since it uses less digits than its factorization.

385806018180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8233257 (or 8233255 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 48.

The spelling of 385806018180 in words is "three hundred eighty-five billion, eight hundred six million, eighteen thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 71 110 132 142 165 213 220 284 330 355 426 660 710 781 852 1065 1420 1562 2130 2343 3124 3905 4260 4686 7810 9372 11715 15620 23430 46860 8233163 16466326 24699489 32932652 41165815 49398978 82331630 90564793 98797956 123497445 164663260 181129586 246994890 271694379 362259172 452823965 493989780 543388758 584554573 905647930 1086777516 1169109146 1358471895 1753663719 1811295860 2338218292 2716943790 2922772865 3507327438 5433887580 5845545730 6430100303 7014654876 8768318595 11691091460 12860200606 17536637190 19290300909 25720401212 32150501515 35073274380 38580601818 64301003030 77161203636 96451504545 128602006060 192903009090 385806018180