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29819841 = 39939947
BaseRepresentation
bin111000111000…
…0001111000001
32002010000010120
41301300033001
530113213331
62543050453
7511315212
oct161601701
962100116
1029819841
11159180a7
129ba0a29
136240c9c
143d63409
152940796
hex1c703c1

29819841 has 4 divisors (see below), whose sum is σ = 39759792. Its totient is φ = 19879892.

The previous prime is 29819827. The next prime is 29819849. The reversal of 29819841 is 14891892.

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 not a de Polignac number, because 29819841 - 211 = 29817793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29819793 and 29819802.

It is not an unprimeable number, because it can be changed into a prime (29819849) 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 3 ways as a sum of consecutive naturals, for example, 4969971 + ... + 4969976.

It is an arithmetic number, because the mean of its divisors is an integer number (9939948).

Almost surely, 229819841 is an apocalyptic number.

It is an amenable number.

29819841 is a deficient number, since it is larger than the sum of its proper divisors (9939951).

29819841 is an equidigital number, since it uses as much as digits as its factorization.

29819841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9939950.

The product of its digits is 41472, while the sum is 42.

The square root of 29819841 is about 5460.7546181824. The cubic root of 29819841 is about 310.1000058894.

The spelling of 29819841 in words is "twenty-nine million, eight hundred nineteen thousand, eight hundred forty-one".

Divisors: 1 3 9939947 29819841