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49319047 = 311590937
BaseRepresentation
bin1011110000100…
…0110010000111
310102210200000101
42330020302013
5100111202142
64521024531
71136130211
oct274106207
9112720011
1049319047
1125926148
1214625147
13a2aa48b
14679b5b1
1544e30b7
hex2f08c87

49319047 has 4 divisors (see below), whose sum is σ = 50910016. Its totient is φ = 47728080.

The previous prime is 49319029. The next prime is 49319059. The reversal of 49319047 is 74091394.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49319047 - 211 = 49316999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49318997 and 49319015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49319087) 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, 795438 + ... + 795499.

It is an arithmetic number, because the mean of its divisors is an integer number (12727504).

Almost surely, 249319047 is an apocalyptic number.

49319047 is a deficient number, since it is larger than the sum of its proper divisors (1590969).

49319047 is a wasteful number, since it uses less digits than its factorization.

49319047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590968.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 49319047 is about 7022.7520958667. The cubic root of 49319047 is about 366.7230646949.

The spelling of 49319047 in words is "forty-nine million, three hundred nineteen thousand, forty-seven".

Divisors: 1 31 1590937 49319047