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30377841966 = 2343114940597
BaseRepresentation
bin11100010010101010…
…010001010100101110
32220102002021021010000
4130102222101110232
5444203211420331
621542210325130
72123535252633
oct342252212456
986362237100
1030377841966
111197955531a
125a795897a6
132b31748c24
1416826c218a
15bcbdb20e6
hex712a9152e

30377841966 has 80 divisors (see below), whose sum is σ = 70737955200. Its totient is φ = 9733296960.

The previous prime is 30377841941. The next prime is 30377841979. The reversal of 30377841966 is 66914877303.

30377841966 is a `hidden beast` number, since 3 + 0 + 377 + 84 + 196 + 6 = 666.

It is a super-2 number, since 2×303778419662 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 727980 + ... + 768576.

It is an arithmetic number, because the mean of its divisors is an integer number (884224440).

Almost surely, 230377841966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30377841966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35368977600).

30377841966 is an abundant number, since it is smaller than the sum of its proper divisors (40360113234).

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

30377841966 is a wasteful number, since it uses less digits than its factorization.

30377841966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40791 (or 40782 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

It can be divided in two parts, 303778 and 41966, that added together give a square (345744 = 5882).

The spelling of 30377841966 in words is "thirty billion, three hundred seventy-seven million, eight hundred forty-one thousand, nine hundred sixty-six".

Divisors: 1 2 3 6 9 18 27 31 54 62 81 93 149 162 186 279 298 447 558 837 894 1341 1674 2511 2682 4023 4619 5022 8046 9238 12069 13857 24138 27714 40597 41571 81194 83142 121791 124713 243582 249426 365373 374139 730746 748278 1096119 1258507 2192238 2517014 3288357 3775521 6048953 6576714 7551042 11326563 12097906 18146859 22653126 33979689 36293718 54440577 67959378 101939067 108881154 163321731 187517543 203878134 326643462 375035086 489965193 562552629 979930386 1125105258 1687657887 3375315774 5062973661 10125947322 15188920983 30377841966