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29643941 = 239471361
BaseRepresentation
bin111000100010…
…1010010100101
32001210001211202
41301011102211
530042101231
62535212245
7506653325
oct161052245
961701752
1029643941
1115807a28
129b17085
1361abbc2
143d19285
1529085cb
hex1c454a5

29643941 has 8 divisors (see below), whose sum is σ = 30988224. Its totient is φ = 28304320.

The previous prime is 29643931. The next prime is 29643947. The reversal of 29643941 is 14934692.

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

It is a cyclic number.

It is not a de Polignac number, because 29643941 - 222 = 25449637 is a prime.

It is a super-2 number, since 2×296439412 = 1757526476022962, which contains 22 as substring.

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 = 29643895 and 29643904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29643947) 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 7 ways as a sum of consecutive naturals, for example, 21101 + ... + 22461.

It is an arithmetic number, because the mean of its divisors is an integer number (3873528).

Almost surely, 229643941 is an apocalyptic number.

It is an amenable number.

29643941 is a deficient number, since it is larger than the sum of its proper divisors (1344283).

29643941 is a wasteful number, since it uses less digits than its factorization.

29643941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331.

The product of its digits is 46656, while the sum is 38.

The square root of 29643941 is about 5444.6249641275. The cubic root of 29643941 is about 309.4890681778.

The spelling of 29643941 in words is "twenty-nine million, six hundred forty-three thousand, nine hundred forty-one".

Divisors: 1 23 947 1361 21781 31303 1288867 29643941