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29820054 = 23111313449
BaseRepresentation
bin111000111000…
…0010010010110
32002010000102110
41301300102112
530113220204
62543051450
7511315635
oct161602226
962100373
1029820054
1115918280
129ba0b86
136241104
143d6351c
152940889
hex1c70496

29820054 has 32 divisors (see below), whose sum is σ = 65577600. Its totient is φ = 8964800.

The previous prime is 29820013. The next prime is 29820059. The reversal of 29820054 is 45002892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29820059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6922 + ... + 10370.

It is an arithmetic number, because the mean of its divisors is an integer number (2049300).

Almost surely, 229820054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29820054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32788800).

29820054 is an abundant number, since it is smaller than the sum of its proper divisors (35757546).

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

29820054 is a wasteful number, since it uses less digits than its factorization.

29820054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3596.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 29820054 is about 5460.7741209466. The cubic root of 29820054 is about 310.1007442249.

The spelling of 29820054 in words is "twenty-nine million, eight hundred twenty thousand, fifty-four".

Divisors: 1 2 3 6 11 22 33 66 131 262 393 786 1441 2882 3449 4323 6898 8646 10347 20694 37939 75878 113817 227634 451819 903638 1355457 2710914 4970009 9940018 14910027 29820054