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29272541 = 223131267
BaseRepresentation
bin110111110101…
…0100111011101
32001002012101012
41233222213131
524443210131
62523225005
7503545454
oct157524735
961065335
1029272541
1115583991
129978165
1360abb3c
143c5db9b
15288352b
hex1bea9dd

29272541 has 4 divisors (see below), whose sum is σ = 29404032. Its totient is φ = 29141052.

The previous prime is 29272511. The next prime is 29272543. The reversal of 29272541 is 14527292.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29272541 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29272498 and 29272507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29272543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65411 + ... + 65856.

It is an arithmetic number, because the mean of its divisors is an integer number (7351008).

Almost surely, 229272541 is an apocalyptic number.

It is an amenable number.

29272541 is a deficient number, since it is larger than the sum of its proper divisors (131491).

29272541 is a wasteful number, since it uses less digits than its factorization.

29272541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131490.

The product of its digits is 10080, while the sum is 32.

The square root of 29272541 is about 5410.4104280544. The cubic root of 29272541 is about 308.1911341050.

The spelling of 29272541 in words is "twenty-nine million, two hundred seventy-two thousand, five hundred forty-one".

Divisors: 1 223 131267 29272541