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29919412 = 2223401811
BaseRepresentation
bin111001000100…
…0100010110100
32002022001201101
41302020202310
530124410122
62545135444
7512211415
oct162104264
962261641
1029919412
1115985996
12a02a584
1362773c3
143d8b80c
152960027
hex1c888b4

29919412 has 24 divisors (see below), whose sum is σ = 54839232. Its totient is φ = 14256000.

The previous prime is 29919403. The next prime is 29919413. The reversal of 29919412 is 21491992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29919413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36487 + ... + 37297.

It is an arithmetic number, because the mean of its divisors is an integer number (2284968).

Almost surely, 229919412 is an apocalyptic number.

It is an amenable number.

29919412 is a deficient number, since it is larger than the sum of its proper divisors (24919820).

29919412 is a wasteful number, since it uses less digits than its factorization.

29919412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239 (or 1237 counting only the distinct ones).

The product of its digits is 11664, while the sum is 37.

The square root of 29919412 is about 5469.8639836837. The cubic root of 29919412 is about 310.4447725874. Note that the first 3 decimals are identical.

It can be divided in two parts, 2991 and 9412, that added together give a triangular number (12403 = T157).

The spelling of 29919412 in words is "twenty-nine million, nine hundred nineteen thousand, four hundred twelve".

Divisors: 1 2 4 23 46 92 401 802 811 1604 1622 3244 9223 18446 18653 36892 37306 74612 325211 650422 1300844 7479853 14959706 29919412