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29948141 = 43968219
BaseRepresentation
bin111001000111…
…1100011101101
32002100112010102
41302033203231
530131320031
62545520445
7512361236
oct162174355
962315112
1029948141
11159a5533
12a043125
1362874c2
143d9808d
1529687cb
hex1c8f8ed

29948141 has 4 divisors (see below), whose sum is σ = 30016800. Its totient is φ = 29879484.

The previous prime is 29948131. The next prime is 29948159. The reversal of 29948141 is 14184992.

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 29948141 - 210 = 29947117 is a prime.

It is a super-2 number, since 2×299481412 = 1793782298711762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29948095 and 29948104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29948111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33671 + ... + 34548.

It is an arithmetic number, because the mean of its divisors is an integer number (7504200).

Almost surely, 229948141 is an apocalyptic number.

It is an amenable number.

29948141 is a deficient number, since it is larger than the sum of its proper divisors (68659).

29948141 is an equidigital number, since it uses as much as digits as its factorization.

29948141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68658.

The product of its digits is 20736, while the sum is 38.

The square root of 29948141 is about 5472.4894700675. The cubic root of 29948141 is about 310.5441051406.

The spelling of 29948141 in words is "twenty-nine million, nine hundred forty-eight thousand, one hundred forty-one".

Divisors: 1 439 68219 29948141