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48931849 = 107457307
BaseRepresentation
bin1011101010101…
…0010000001001
310102001222212201
42322222100021
5100011304344
64504440201
71132625311
oct272522011
9112058781
1048931849
112569124a
1214479061
13a1a3175
1466da441
1544684d4
hex2eaa409

48931849 has 4 divisors (see below), whose sum is σ = 49389264. Its totient is φ = 48474436.

The previous prime is 48931843. The next prime is 48931867. The reversal of 48931849 is 94813984.

48931849 = T5710 + T5711 + T5712.

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 not a de Polignac number, because 48931849 - 211 = 48929801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48931799 and 48931808.

It is not an unprimeable number, because it can be changed into a prime (48931843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228547 + ... + 228760.

It is an arithmetic number, because the mean of its divisors is an integer number (12347316).

Almost surely, 248931849 is an apocalyptic number.

48931849 is the 5712-nd centered triangular number.

It is an amenable number.

48931849 is a deficient number, since it is larger than the sum of its proper divisors (457415).

48931849 is a wasteful number, since it uses less digits than its factorization.

48931849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457414.

The product of its digits is 248832, while the sum is 46.

The square root of 48931849 is about 6995.1303776270. The cubic root of 48931849 is about 365.7608423962.

The spelling of 48931849 in words is "forty-eight million, nine hundred thirty-one thousand, eight hundred forty-nine".

Divisors: 1 107 457307 48931849