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49995161 = 227220243
BaseRepresentation
bin1011111010110…
…1110110011001
310111002000110122
42332231312121
5100244321121
64543323025
71144644326
oct276556631
9114060418
1049995161
1126248117
12148b0475
13a486148
1468d5b4d
1545c85ab
hex2fadd99

49995161 has 4 divisors (see below), whose sum is σ = 50215632. Its totient is φ = 49774692.

The previous prime is 49995149. The next prime is 49995191. The reversal of 49995161 is 16159994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49995161 - 214 = 49978777 is a prime.

It is a super-2 number, since 2×499951612 = 4999032246831842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49995131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109895 + ... + 110348.

It is an arithmetic number, because the mean of its divisors is an integer number (12553908).

Almost surely, 249995161 is an apocalyptic number.

It is an amenable number.

49995161 is a deficient number, since it is larger than the sum of its proper divisors (220471).

49995161 is a wasteful number, since it uses less digits than its factorization.

49995161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220470.

The product of its digits is 87480, while the sum is 44.

The square root of 49995161 is about 7070.7256346149. The cubic root of 49995161 is about 368.3912647950.

The spelling of 49995161 in words is "forty-nine million, nine hundred ninety-five thousand, one hundred sixty-one".

Divisors: 1 227 220243 49995161