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13029671 = 29449299
BaseRepresentation
bin110001101101…
…000100100111
3220111222100102
4301231010213
511313422141
61143134315
7215515244
oct61550447
926458312
1013029671
11739a426
12444439b
132912885
141a325cb
15122599b
hexc6d127

13029671 has 4 divisors (see below), whose sum is σ = 13479000. Its totient is φ = 12580344.

The previous prime is 13029637. The next prime is 13029683. The reversal of 13029671 is 17692031.

13029671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13029671 - 222 = 8835367 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 449299 = 13029671 / (1 + 3 + 0 + 2 + 9 + 6 + 7 + 1).

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13029271) 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, 224621 + ... + 224678.

It is an arithmetic number, because the mean of its divisors is an integer number (3369750).

Almost surely, 213029671 is an apocalyptic number.

13029671 is a deficient number, since it is larger than the sum of its proper divisors (449329).

13029671 is an equidigital number, since it uses as much as digits as its factorization.

13029671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449328.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 13029671 is about 3609.6635577294. The cubic root of 13029671 is about 235.3122211843.

The spelling of 13029671 in words is "thirteen million, twenty-nine thousand, six hundred seventy-one".

Divisors: 1 29 449299 13029671