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29138804 = 2213753173
BaseRepresentation
bin110111100100…
…1111101110100
32000211101220222
41233021331310
524424420204
62520313512
7502450532
oct157117564
960741828
1029138804
11154a2462
129912898
136062cc6
143c27152
152858abe
hex1bc9f74

29138804 has 12 divisors (see below), whose sum is σ = 51366084. Its totient is φ = 14462784.

The previous prime is 29138789. The next prime is 29138807. The reversal of 29138804 is 40883192.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17222500 + 11916304 = 4150^2 + 3452^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29138807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26039 + ... + 27134.

It is an arithmetic number, because the mean of its divisors is an integer number (4280507).

Almost surely, 229138804 is an apocalyptic number.

It is an amenable number.

29138804 is a deficient number, since it is larger than the sum of its proper divisors (22227280).

29138804 is a wasteful number, since it uses less digits than its factorization.

29138804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53314 (or 53312 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 29138804 is about 5398.0370506324. The cubic root of 29138804 is about 307.7210748553.

The spelling of 29138804 in words is "twenty-nine million, one hundred thirty-eight thousand, eight hundred four".

Divisors: 1 2 4 137 274 548 53173 106346 212692 7284701 14569402 29138804