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29808797976384 = 263722179165161
BaseRepresentation
bin1101100011100011001101…
…10100001000011101000000
310220112200201101100120200220
412301301212310020131000
512401341404240221014
6143221550040143040
76164420542120140
oct661614664103500
9126480641316626
1029808797976384
119552927386819
12341518a167a80
131382c5aa87c7b
14750a79932920
1536a5dde276a9
hex1b1c66d08740

29808797976384 has 56 divisors (see below), whose sum is σ = 90136127218368. Its totient is φ = 8516799421440.

The previous prime is 29808797976371. The next prime is 29808797976409. The reversal of 29808797976384 is 48367979780892.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 29808797976384.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 11089581237 + ... + 11089583924.

It is an arithmetic number, because the mean of its divisors is an integer number (1609573700328).

Almost surely, 229808797976384 is an apocalyptic number.

29808797976384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

29808797976384 is an abundant number, since it is smaller than the sum of its proper divisors (60327329241984).

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

29808797976384 is a wasteful number, since it uses less digits than its factorization.

29808797976384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22179165183 (or 22179165173 counting only the distinct ones).

The product of its (nonzero) digits is 18435465216, while the sum is 87.

The spelling of 29808797976384 in words is "twenty-nine trillion, eight hundred eight billion, seven hundred ninety-seven million, nine hundred seventy-six thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 192 224 336 448 672 1344 22179165161 44358330322 66537495483 88716660644 133074990966 155254156127 177433321288 266149981932 310508312254 354866642576 465762468381 532299963864 621016624508 709733285152 931524936762 1064599927728 1242033249016 1419466570304 1863049873524 2129199855456 2484066498032 3726099747048 4258399710912 4968132996064 7452199494096 9936265992128 14904398988192 29808797976384