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29316641 = 33786993
BaseRepresentation
bin110111111010…
…1011000100001
32001011102212112
41233311120201
530001113031
62524205105
7504121154
oct157653041
961142775
1029316641
1115604032
129999795
1360c5c33
143c71c9b
15289162b
hex1bf5621

29316641 has 4 divisors (see below), whose sum is σ = 29403972. Its totient is φ = 29229312.

The previous prime is 29316631. The next prime is 29316647. The reversal of 29316641 is 14661392.

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 15840400 + 13476241 = 3980^2 + 3671^2 .

It is a cyclic number.

It is not a de Polignac number, because 29316641 - 210 = 29315617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 29316598 and 29316607.

It is not an unprimeable number, because it can be changed into a prime (29316647) 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, 43160 + ... + 43833.

It is an arithmetic number, because the mean of its divisors is an integer number (7350993).

Almost surely, 229316641 is an apocalyptic number.

It is an amenable number.

29316641 is a deficient number, since it is larger than the sum of its proper divisors (87331).

29316641 is an equidigital number, since it uses as much as digits as its factorization.

29316641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87330.

The product of its digits is 7776, while the sum is 32.

The square root of 29316641 is about 5414.4843706488. The cubic root of 29316641 is about 308.3458229824.

The spelling of 29316641 in words is "twenty-nine million, three hundred sixteen thousand, six hundred forty-one".

Divisors: 1 337 86993 29316641