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29893361 = 171758433
BaseRepresentation
bin111001000001…
…0001011110001
32002020201222112
41302002023301
530123041421
62544415105
7512042441
oct162021361
962221875
1029893361
1115968363
12a017495
1362685a4
143d82121
15295745b
hex1c822f1

29893361 has 4 divisors (see below), whose sum is σ = 31651812. Its totient is φ = 28134912.

The previous prime is 29893349. The next prime is 29893379. The reversal of 29893361 is 16339892.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19749136 + 10144225 = 4444^2 + 3185^2 .

It is a cyclic number.

It is not a de Polignac number, because 29893361 - 222 = 25699057 is a prime.

It is a super-2 number, since 2×298933612 = 1787226063752642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29893321) 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 3 ways as a sum of consecutive naturals, for example, 879200 + ... + 879233.

It is an arithmetic number, because the mean of its divisors is an integer number (7912953).

Almost surely, 229893361 is an apocalyptic number.

It is an amenable number.

29893361 is a deficient number, since it is larger than the sum of its proper divisors (1758451).

29893361 is a wasteful number, since it uses less digits than its factorization.

29893361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758450.

The product of its digits is 69984, while the sum is 41.

The square root of 29893361 is about 5467.4821444610. The cubic root of 29893361 is about 310.3546444218.

The spelling of 29893361 in words is "twenty-nine million, eight hundred ninety-three thousand, three hundred sixty-one".

Divisors: 1 17 1758433 29893361