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49905269441 = 114374363493
BaseRepresentation
bin101110011110100101…
…011111101011000001
311202210222120100201122
4232132211133223001
51304201222110231
634532015042025
73414461535236
oct563645375301
9152728510648
1049905269441
111a18a250635
129809210315
134924252841
1425b5d1178d
1514713d177b
hexb9e95fac1

49905269441 has 4 divisors (see below), whose sum is σ = 49909644372. Its totient is φ = 49900894512.

The previous prime is 49905269419. The next prime is 49905269443. The reversal of 49905269441 is 14496250994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14496250994 = 27248125497.

It can be written as a sum of positive squares in 2 ways, for example, as 20219702416 + 29685567025 = 142196^2 + 172295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49905269441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49905269443) 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, 2170310 + ... + 2193183.

It is an arithmetic number, because the mean of its divisors is an integer number (12477411093).

Almost surely, 249905269441 is an apocalyptic number.

It is an amenable number.

49905269441 is a deficient number, since it is larger than the sum of its proper divisors (4374931).

49905269441 is a wasteful number, since it uses less digits than its factorization.

49905269441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4374930.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 49905269441 in words is "forty-nine billion, nine hundred five million, two hundred sixty-nine thousand, four hundred forty-one".

Divisors: 1 11437 4363493 49905269441