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308830685232840 = 233523111895175809
BaseRepresentation
bin100011000111000010011111…
…1010010011111111011001000
31111111110220222110011001211020
41012032010333102133323020
5310434340220404422330
63012454505211432440
7122023165164455511
oct10616047722377310
91444426873131736
10308830685232840
118a4483a3684011
122a779557755720
13103427bb2a9444
1456396b0897a08
1525a85dc947210
hex118e13f49fec8

308830685232840 has 64 divisors (see below), whose sum is σ = 966774318998400. Its totient is φ = 78774203768832.

The previous prime is 308830685232821. The next prime is 308830685232887. The reversal of 308830685232840 is 48232586038803.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55947585145 + ... + 55947590664.

It is an arithmetic number, because the mean of its divisors is an integer number (15105848734350).

Almost surely, 2308830685232840 is an apocalyptic number.

308830685232840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

308830685232840 is an abundant number, since it is smaller than the sum of its proper divisors (657943633765560).

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

308830685232840 is a wasteful number, since it uses less digits than its factorization.

308830685232840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111895175846 (or 111895175842 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 60.

The spelling of 308830685232840 in words is "three hundred eight trillion, eight hundred thirty billion, six hundred eighty-five million, two hundred thirty-two thousand, eight hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 23 24 30 40 46 60 69 92 115 120 138 184 230 276 345 460 552 690 920 1380 2760 111895175809 223790351618 335685527427 447580703236 559475879045 671371054854 895161406472 1118951758090 1342742109708 1678427637135 2237903516180 2573589043607 2685484219416 3356855274270 4475807032360 5147178087214 6713710548540 7720767130821 10294356174428 12867945218035 13427421097080 15441534261642 20588712348856 25735890436070 30883068523284 38603835654105 51471780872140 61766137046568 77207671308210 102943561744280 154415342616420 308830685232840