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29380839 = 331431733
BaseRepresentation
bin111000000010…
…1000011100111
32001021200221020
41300011003213
530010141324
62525422223
7504506265
oct160050347
961250836
1029380839
1115648294
129a0a973
136119217
143c8b435
1528a5679
hex1c050e7

29380839 has 16 divisors (see below), whose sum is σ = 40587264. Its totient is φ = 18885600.

The previous prime is 29380831. The next prime is 29380873. The reversal of 29380839 is 93808392.

It is not a de Polignac number, because 29380839 - 23 = 29380831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29380839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29380831) 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, 39717 + ... + 40449.

It is an arithmetic number, because the mean of its divisors is an integer number (2536704).

Almost surely, 229380839 is an apocalyptic number.

29380839 is a deficient number, since it is larger than the sum of its proper divisors (11206425).

29380839 is a wasteful number, since it uses less digits than its factorization.

29380839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 29380839 is about 5420.4094863765. The cubic root of 29380839 is about 308.5707322576.

The spelling of 29380839 in words is "twenty-nine million, three hundred eighty thousand, eight hundred thirty-nine".

Divisors: 1 3 31 93 431 733 1293 2199 13361 22723 40083 68169 315923 947769 9793613 29380839