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49391441 = 114490131
BaseRepresentation
bin1011110001101…
…0011101010001
310102221100022122
42330122131101
5100121011231
64522344025
71136551241
oct274323521
9112840278
1049391441
1125975580
121465b015
13a304408
1467b9b21
15450977b
hex2f1a751

49391441 has 4 divisors (see below), whose sum is σ = 53881584. Its totient is φ = 44901300.

The previous prime is 49391423. The next prime is 49391449. The reversal of 49391441 is 14419394.

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 a de Polignac number, because none of the positive numbers 2k-49391441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49391449) 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, 2245055 + ... + 2245076.

It is an arithmetic number, because the mean of its divisors is an integer number (13470396).

Almost surely, 249391441 is an apocalyptic number.

It is an amenable number.

49391441 is a deficient number, since it is larger than the sum of its proper divisors (4490143).

49391441 is a wasteful number, since it uses less digits than its factorization.

49391441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4490142.

The product of its digits is 15552, while the sum is 35.

The square root of 49391441 is about 7027.9044529646. The cubic root of 49391441 is about 366.9024110245.

The spelling of 49391441 in words is "forty-nine million, three hundred ninety-one thousand, four hundred forty-one".

Divisors: 1 11 4490131 49391441