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248900513 = 1913100027
BaseRepresentation
bin11101101010111…
…10101110100001
3122100100110022112
432311132232201
51002204304023
640410445105
76111422321
oct1665365641
9570313275
10248900513
11118552704
126b433795
133c749114
14250b1281
1516cb8478
hexed5eba1

248900513 has 4 divisors (see below), whose sum is σ = 262000560. Its totient is φ = 235800468.

The previous prime is 248900507. The next prime is 248900537. The reversal of 248900513 is 315009842.

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 248900513 - 24 = 248900497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 248900513.

It is not an unprimeable number, because it can be changed into a prime (248900563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6549995 + ... + 6550032.

It is an arithmetic number, because the mean of its divisors is an integer number (65500140).

Almost surely, 2248900513 is an apocalyptic number.

It is an amenable number.

248900513 is a deficient number, since it is larger than the sum of its proper divisors (13100047).

248900513 is a wasteful number, since it uses less digits than its factorization.

248900513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13100046.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 248900513 is about 15776.5811568920. The cubic root of 248900513 is about 629.0356565682.

The spelling of 248900513 in words is "two hundred forty-eight million, nine hundred thousand, five hundred thirteen".

Divisors: 1 19 13100027 248900513