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29663933 = 132519091
BaseRepresentation
bin111000100101…
…0001010111101
32001211002021012
41301022022331
530043221213
62535445005
7510065525
oct161121275
961732235
1029663933
1115820a52
129b26765
1361b8030
143d22685
15290e4a8
hex1c4a2bd

29663933 has 8 divisors (see below), whose sum is σ = 32076576. Its totient is φ = 27270000.

The previous prime is 29663927. The next prime is 29663971. The reversal of 29663933 is 33936692.

Added to its reverse (33936692) it gives a square (63600625 = 79752).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29663933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29663903) 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 in 7 ways as a sum of consecutive naturals, for example, 1283 + ... + 7808.

It is an arithmetic number, because the mean of its divisors is an integer number (4009572).

Almost surely, 229663933 is an apocalyptic number.

It is an amenable number.

29663933 is a deficient number, since it is larger than the sum of its proper divisors (2412643).

29663933 is a wasteful number, since it uses less digits than its factorization.

29663933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9355.

The product of its digits is 157464, while the sum is 41.

The square root of 29663933 is about 5446.4605938169. The cubic root of 29663933 is about 309.5586261250.

Adding to 29663933 its reverse (33936692), we get a square (63600625 = 79752).

The spelling of 29663933 in words is "twenty-nine million, six hundred sixty-three thousand, nine hundred thirty-three".

Divisors: 1 13 251 3263 9091 118183 2281841 29663933