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29938894 = 214969447
BaseRepresentation
bin111001000110…
…1010011001110
32002100001102221
41302031103032
530131021034
62545405554
7512322256
oct162152316
962301387
1029938894
1115999597
12a0398ba
13628322b
143d94966
152965bb4
hex1c8d4ce

29938894 has 4 divisors (see below), whose sum is σ = 44908344. Its totient is φ = 14969446.

The previous prime is 29938891. The next prime is 29938967. The reversal of 29938894 is 49883992.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29938891) by changing a digit.

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 as a sum of consecutive naturals, namely, 7484722 + ... + 7484725.

It is an arithmetic number, because the mean of its divisors is an integer number (11227086).

Almost surely, 229938894 is an apocalyptic number.

29938894 is a deficient number, since it is larger than the sum of its proper divisors (14969450).

29938894 is a wasteful number, since it uses less digits than its factorization.

29938894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14969449.

The product of its digits is 1119744, while the sum is 52.

The square root of 29938894 is about 5471.6445425484. The cubic root of 29938894 is about 310.5121399184.

It can be divided in two parts, 299 and 38894, that added together give a palindrome (39193).

The spelling of 29938894 in words is "twenty-nine million, nine hundred thirty-eight thousand, eight hundred ninety-four".

Divisors: 1 2 14969447 29938894