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29783072904 = 2331395458567
BaseRepresentation
bin11011101111001101…
…011010000010001000
32211212122002212100020
4123233031122002020
5441443431313104
621403202340440
72103023641224
oct335715320210
984778085306
1029783072904
11116a384a542
12593235a720
132a68462280
1416276db784
15b94a792d9
hex6ef35a088

29783072904 has 32 divisors (see below), whose sum is σ = 80185197120. Its totient is φ = 9164022336.

The previous prime is 29783072903. The next prime is 29783072947. The reversal of 29783072904 is 40927038792.

It is not an unprimeable number, because it can be changed into a prime (29783072903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47728972 + ... + 47729595.

It is an arithmetic number, because the mean of its divisors is an integer number (2505787410).

Almost surely, 229783072904 is an apocalyptic number.

29783072904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

29783072904 is an abundant number, since it is smaller than the sum of its proper divisors (50402124216).

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

29783072904 is a wasteful number, since it uses less digits than its factorization.

29783072904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95458589 (or 95458585 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 29783072904 in words is "twenty-nine billion, seven hundred eighty-three million, seventy-two thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 95458567 190917134 286375701 381834268 572751402 763668536 1145502804 1240961371 2291005608 2481922742 3722884113 4963845484 7445768226 9927690968 14891536452 29783072904