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78030051000008 = 2347978392550001
BaseRepresentation
bin10001101111011111001001…
…011110001011111011001000
3101020021121012102021010220012
4101233133021132023323020
540211421021024000013
6433542302140451052
722302325255652222
oct2157371136137310
9336247172233805
1078030051000008
11229543a4606458
1289028b6249a88
13347028240b573
14153a963227412
15904b19cab1a8
hex46f7c978bec8

78030051000008 has 64 divisors (see below), whose sum is σ = 151139638540800. Its totient is φ = 37746201600000.

The previous prime is 78030050999993. The next prime is 78030051000037. The reversal of 78030051000008 is 80000015003087.

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, 29325008 + ... + 31875008.

It is an arithmetic number, because the mean of its divisors is an integer number (2361556852200).

Almost surely, 278030051000008 is an apocalyptic number.

78030051000008 is the 5100002-nd octagonal number.

It is an amenable number.

78030051000008 is a deficient number, since it is larger than the sum of its proper divisors (73109587540792).

78030051000008 is a wasteful number, since it uses less digits than its factorization.

78030051000008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550990 (or 2550986 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 78030051000008 in words is "seventy-eight trillion, thirty billion, fifty-one million, eight", and thus it is an aban number and an uban number.

Divisors: 1 2 4 8 47 94 97 188 194 376 388 776 839 1678 3356 4559 6712 9118 18236 36472 39433 78866 81383 157732 162766 315464 325532 651064 2550001 3825001 5100002 7650002 10200004 15300004 20400008 30600008 119850047 239700094 247350097 479400188 494700194 958800376 989400388 1978800776 2139450839 4278901678 8557803356 11625454559 17115606712 23250909118 46501818236 93003636472 100554189433 201108378866 207526731383 402216757732 415053462766 804433515464 830106925532 1660213851064 9753756375001 19507512750002 39015025500004 78030051000008