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49816141 = 313159157
BaseRepresentation
bin1011111000001…
…0001001001101
310110201220220021
42332002021031
5100223104031
64535422141
71143300364
oct276021115
9113656807
1049816141
1126135671
1214824951
13a42280b
14688a7db
154590511
hex2f8224d

49816141 has 4 divisors (see below), whose sum is σ = 49975612. Its totient is φ = 49656672.

The previous prime is 49816127. The next prime is 49816147. The reversal of 49816141 is 14161894.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14161894 = 27080947.

It can be written as a sum of positive squares in 2 ways, for example, as 6651241 + 43164900 = 2579^2 + 6570^2 .

It is a cyclic number.

It is not a de Polignac number, because 49816141 - 215 = 49783373 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49816097 and 49816106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49816147) 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, 79266 + ... + 79891.

It is an arithmetic number, because the mean of its divisors is an integer number (12493903).

Almost surely, 249816141 is an apocalyptic number.

It is an amenable number.

49816141 is a deficient number, since it is larger than the sum of its proper divisors (159471).

49816141 is a wasteful number, since it uses less digits than its factorization.

49816141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159470.

The product of its digits is 6912, while the sum is 34.

The square root of 49816141 is about 7058.0550437072. The cubic root of 49816141 is about 367.9510336746.

The spelling of 49816141 in words is "forty-nine million, eight hundred sixteen thousand, one hundred forty-one".

Divisors: 1 313 159157 49816141