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29071371 = 371384351
BaseRepresentation
bin110111011100…
…1100000001011
32000200222102110
41232321200023
524420240441
62515033403
7502050120
oct156714013
960628373
1029071371
111545682a
12989b863
13603b3c4
143c0a747
152843b16
hex1bb980b

29071371 has 8 divisors (see below), whose sum is σ = 44299264. Its totient is φ = 16612200.

The previous prime is 29071363. The next prime is 29071391. The reversal of 29071371 is 17317092.

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

It is not a de Polignac number, because 29071371 - 23 = 29071363 is a prime.

It is a super-2 number, since 2×290713712 = 1690289223639282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29071391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692155 + ... + 692196.

It is an arithmetic number, because the mean of its divisors is an integer number (5537408).

Almost surely, 229071371 is an apocalyptic number.

29071371 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

29071371 is a deficient number, since it is larger than the sum of its proper divisors (15227893).

29071371 is a wasteful number, since it uses less digits than its factorization.

29071371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384361.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 29071371 is about 5391.7873659854. The cubic root of 29071371 is about 307.4835155417.

It can be divided in two parts, 2907 and 1371, that added together give a triangular number (4278 = T92).

The spelling of 29071371 in words is "twenty-nine million, seventy-one thousand, three hundred seventy-one".

Divisors: 1 3 7 21 1384351 4153053 9690457 29071371