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49801393 = 401124193
BaseRepresentation
bin1011110111111…
…0100010110001
310110201011200001
42331332202301
5100222121033
64535230001
71143206365
oct275764261
9113634601
1049801393
1126125584
1214818301
13a418ba5
1468852a5
15458ae7d
hex2f7e8b1

49801393 has 4 divisors (see below), whose sum is σ = 49925988. Its totient is φ = 49676800.

The previous prime is 49801391. The next prime is 49801421. The reversal of 49801393 is 39310894.

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 49322529 + 478864 = 7023^2 + 692^2 .

It is a cyclic number.

It is not a de Polignac number, because 49801393 - 21 = 49801391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49801391) 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, 61696 + ... + 62497.

It is an arithmetic number, because the mean of its divisors is an integer number (12481497).

Almost surely, 249801393 is an apocalyptic number.

It is an amenable number.

49801393 is a deficient number, since it is larger than the sum of its proper divisors (124595).

49801393 is a wasteful number, since it uses less digits than its factorization.

49801393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124594.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 49801393 is about 7057.0102026283. The cubic root of 49801393 is about 367.9147196251.

The spelling of 49801393 in words is "forty-nine million, eight hundred one thousand, three hundred ninety-three".

Divisors: 1 401 124193 49801393