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306161427845 = 5731337371143
BaseRepresentation
bin1000111010010001010…
…01001010010110000101
31002021020220201222210102
410131020221022112011
520004004311142340
6352352033533445
731055652125000
oct4351051122605
91067226658712
10306161427845
1110892a165229
124b404a14285
1322b42497cc0
1410b65572537
157e6d582215
hex4748a4a585

306161427845 has 64 divisors (see below), whose sum is σ = 473876659200. Its totient is φ = 188552012544.

The previous prime is 306161427799. The next prime is 306161427881. The reversal of 306161427845 is 548724161603.

It is not a de Polignac number, because 306161427845 - 212 = 306161423749 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 306161427845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 639344 + ... + 1010486.

It is an arithmetic number, because the mean of its divisors is an integer number (7404322800).

Almost surely, 2306161427845 is an apocalyptic number.

306161427845 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

306161427845 is a deficient number, since it is larger than the sum of its proper divisors (167715231355).

306161427845 is a wasteful number, since it uses less digits than its factorization.

306161427845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371219 (or 371205 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 306161427845 in words is "three hundred six billion, one hundred sixty-one million, four hundred twenty-seven thousand, eight hundred forty-five".

Divisors: 1 5 7 13 35 37 49 65 91 185 245 259 343 455 481 637 1295 1715 1813 2405 3185 3367 4459 9065 12691 16835 22295 23569 63455 117845 164983 371143 824915 1855715 2598001 4824859 12990005 13732291 18186007 24124295 33774013 68661455 90930035 96126037 127302049 168870065 178519783 236418091 480630185 636510245 672882259 892598915 1182090455 1249638481 1654926637 3364411295 4710175813 6248192405 8274633185 8747469367 23550879065 43737346835 61232285569 306161427845