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29283904 = 261361577
BaseRepresentation
bin110111110110…
…1011001000000
32001002202222001
41233231121000
524444041104
62523353344
7503623546
oct157553100
961082861
1029283904
1115591481
129982854
1360b4070
143c63d96
152886aa4
hex1bed640

29283904 has 56 divisors (see below), whose sum is σ = 63716408. Its totient is φ = 13271040.

The previous prime is 29283893. The next prime is 29283913. The reversal of 29283904 is 40938292.

It can be written as a sum of positive squares in 4 ways, for example, as 1742400 + 27541504 = 1320^2 + 5248^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50464 + ... + 51040.

It is an arithmetic number, because the mean of its divisors is an integer number (1137793).

Almost surely, 229283904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29283904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31858204).

29283904 is an abundant number, since it is smaller than the sum of its proper divisors (34432504).

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

29283904 is a wasteful number, since it uses less digits than its factorization.

29283904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 29283904 is about 5411.4604313438. The cubic root of 29283904 is about 308.2310067719.

The spelling of 29283904 in words is "twenty-nine million, two hundred eighty-three thousand, nine hundred four".

Divisors: 1 2 4 8 13 16 26 32 52 61 64 104 122 208 244 416 488 577 793 832 976 1154 1586 1952 2308 3172 3904 4616 6344 7501 9232 12688 15002 18464 25376 30004 35197 36928 50752 60008 70394 120016 140788 240032 281576 457561 480064 563152 915122 1126304 1830244 2252608 3660488 7320976 14641952 29283904