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29894045 = 55978809
BaseRepresentation
bin111001000001…
…0010110011101
32002020202220212
41302002112131
530123102140
62544422205
7512044436
oct162022635
962222825
1029894045
1115968925
12a017965
1362689ac
143d8248d
152957765
hex1c8259d

29894045 has 4 divisors (see below), whose sum is σ = 35872860. Its totient is φ = 23915232.

The previous prime is 29894017. The next prime is 29894047. The reversal of 29894045 is 54049892.

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 23639044 + 6255001 = 4862^2 + 2501^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29894045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29893993 and 29894011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29894047) 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, 2989400 + ... + 2989409.

It is an arithmetic number, because the mean of its divisors is an integer number (8968215).

Almost surely, 229894045 is an apocalyptic number.

It is an amenable number.

29894045 is a deficient number, since it is larger than the sum of its proper divisors (5978815).

29894045 is an equidigital number, since it uses as much as digits as its factorization.

29894045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5978814.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 29894045 is about 5467.5446957478. The cubic root of 29894045 is about 310.3570115133.

The spelling of 29894045 in words is "twenty-nine million, eight hundred ninety-four thousand, forty-five".

Divisors: 1 5 5978809 29894045