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49248431 = 61438017
BaseRepresentation
bin1011101111011…
…1100010101111
310102200002010222
42323313202233
5100101422211
64515321555
71135414301
oct273674257
9112602128
1049248431
1125888091
12145b02bb
13a2842ab
14677d971
1544cc1db
hex2ef78af

49248431 has 4 divisors (see below), whose sum is σ = 49262592. Its totient is φ = 49234272.

The previous prime is 49248427. The next prime is 49248457. The reversal of 49248431 is 13484294.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 49248431 - 22 = 49248427 is a prime.

It is a super-2 number, since 2×492484312 = 4850815911923522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49248391 and 49248400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49248401) 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, 2135 + ... + 10151.

It is an arithmetic number, because the mean of its divisors is an integer number (12315648).

Almost surely, 249248431 is an apocalyptic number.

49248431 is a deficient number, since it is larger than the sum of its proper divisors (14161).

49248431 is an equidigital number, since it uses as much as digits as its factorization.

49248431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14160.

The product of its digits is 27648, while the sum is 35.

The square root of 49248431 is about 7017.7226362973. The cubic root of 49248431 is about 366.5479539478.

The spelling of 49248431 in words is "forty-nine million, two hundred forty-eight thousand, four hundred thirty-one".

Divisors: 1 6143 8017 49248431