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29112517 = 721734949
BaseRepresentation
bin110111100001…
…1100011000101
32000210001212101
41233003203011
524423100032
62515552101
7502311100
oct157034305
960701771
1029112517
1115484735
1298bb631
136054055
143c1b737
152850de7
hex1bc38c5

29112517 has 12 divisors (see below), whose sum is σ = 35858700. Its totient is φ = 23485056.

The previous prime is 29112511. The next prime is 29112557. The reversal of 29112517 is 71521192.

It can be written as a sum of positive squares in 2 ways, for example, as 10458756 + 18653761 = 3234^2 + 4319^2 .

It is not a de Polignac number, because 29112517 - 23 = 29112509 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 (29112511) 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 11 ways as a sum of consecutive naturals, for example, 16642 + ... + 18307.

It is an arithmetic number, because the mean of its divisors is an integer number (2988225).

Almost surely, 229112517 is an apocalyptic number.

It is an amenable number.

29112517 is a deficient number, since it is larger than the sum of its proper divisors (6746183).

29112517 is a wasteful number, since it uses less digits than its factorization.

29112517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34980 (or 34973 counting only the distinct ones).

The product of its digits is 1260, while the sum is 28.

The square root of 29112517 is about 5395.6016346650. The cubic root of 29112517 is about 307.6285121729.

The spelling of 29112517 in words is "twenty-nine million, one hundred twelve thousand, five hundred seventeen".

Divisors: 1 7 17 49 119 833 34949 244643 594133 1712501 4158931 29112517