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29281076992 = 28234973009
BaseRepresentation
bin11011010001010010…
…011100011100000000
32210120122111211102001
4123101102130130000
5434431423430432
621241311033344
72054420022256
oct332122343400
983518454361
1029281076992
111146644a592
12581220b854
1329b845b87b
1415bab865d6
15b659699e7
hex6d149c700

29281076992 has 36 divisors (see below), whose sum is σ = 60988994640. Its totient is φ = 14003990528.

The previous prime is 29281076977. The next prime is 29281077011. The reversal of 29281076992 is 29967018292.

It is a super-2 number, since 2×292810769922 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2480617 + ... + 2492392.

It is an arithmetic number, because the mean of its divisors is an integer number (1694138740).

Almost surely, 229281076992 is an apocalyptic number.

It is an amenable number.

29281076992 is an abundant number, since it is smaller than the sum of its proper divisors (31707917648).

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

29281076992 is an equidigital number, since it uses as much as digits as its factorization.

29281076992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4973048 (or 4973034 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 29281076992 in words is "twenty-nine billion, two hundred eighty-one million, seventy-six thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 23 32 46 64 92 128 184 256 368 736 1472 2944 5888 4973009 9946018 19892036 39784072 79568144 114379207 159136288 228758414 318272576 457516828 636545152 915033656 1273090304 1830067312 3660134624 7320269248 14640538496 29281076992