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29013517 = 132231809
BaseRepresentation
bin110111010101…
…1011000001101
32000121001001201
41232223120031
524411413032
62513505501
7501416341
oct156533015
960531051
1029013517
1115417315
129872291
13601ac80
143bd3621
1528318e7
hex1bab60d

29013517 has 4 divisors (see below), whose sum is σ = 31245340. Its totient is φ = 26781696.

The previous prime is 29013503. The next prime is 29013521. The reversal of 29013517 is 71531092.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15256836 + 13756681 = 3906^2 + 3709^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29013517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29013317) 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, 1115892 + ... + 1115917.

It is an arithmetic number, because the mean of its divisors is an integer number (7811335).

Almost surely, 229013517 is an apocalyptic number.

It is an amenable number.

29013517 is a deficient number, since it is larger than the sum of its proper divisors (2231823).

29013517 is a wasteful number, since it uses less digits than its factorization.

29013517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231822.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 29013517 is about 5386.4196828691. The cubic root of 29013517 is about 307.2794090697.

The spelling of 29013517 in words is "twenty-nine million, thirteen thousand, five hundred seventeen".

Divisors: 1 13 2231809 29013517