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29670830 = 257423869
BaseRepresentation
bin111000100101…
…1110110101110
32001211102201122
41301023312232
530043431310
62535540542
7510124610
oct161136656
961742648
1029670830
1115826152
129b2a752
1361bb207
143d24db0
152911555
hex1c4bdae

29670830 has 16 divisors (see below), whose sum is σ = 61037280. Its totient is φ = 10172832.

The previous prime is 29670821. The next prime is 29670841. The reversal of 29670830 is 3807692.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211865 + ... + 212004.

It is an arithmetic number, because the mean of its divisors is an integer number (3814830).

Almost surely, 229670830 is an apocalyptic number.

29670830 is an abundant number, since it is smaller than the sum of its proper divisors (31366450).

29670830 is a wasteful number, since it uses less digits than its factorization.

29670830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423883.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 29670830 is about 5447.0937205082. The cubic root of 29670830 is about 309.5826155311.

The spelling of 29670830 in words is "twenty-nine million, six hundred seventy thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 423869 847738 2119345 2967083 4238690 5934166 14835415 29670830