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29965193 = 53565381
BaseRepresentation
bin111001001001…
…1101110001001
32002101101111222
41302103232021
530132341233
62550131425
7512462036
oct162235611
962341458
1029965193
1115a07325
12a050b75
1362921ab
143da038d
15296d898
hex1c93b89

29965193 has 4 divisors (see below), whose sum is σ = 30530628. Its totient is φ = 29399760.

The previous prime is 29965151. The next prime is 29965211. The reversal of 29965193 is 39156992.

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 8832784 + 21132409 = 2972^2 + 4597^2 .

It is a cyclic number.

It is not a de Polignac number, because 29965193 - 220 = 28916617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29965123) 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 3 ways as a sum of consecutive naturals, for example, 282638 + ... + 282743.

It is an arithmetic number, because the mean of its divisors is an integer number (7632657).

Almost surely, 229965193 is an apocalyptic number.

It is an amenable number.

29965193 is a deficient number, since it is larger than the sum of its proper divisors (565435).

29965193 is an equidigital number, since it uses as much as digits as its factorization.

29965193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565434.

The product of its digits is 131220, while the sum is 44.

The square root of 29965193 is about 5474.0472230334. The cubic root of 29965193 is about 310.6030335992.

The spelling of 29965193 in words is "twenty-nine million, nine hundred sixty-five thousand, one hundred ninety-three".

Divisors: 1 53 565381 29965193