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248945419 = 1434117359
BaseRepresentation
bin11101101011010…
…01101100001011
3122100102201220201
432311221230023
51002212223134
640411433031
76112000252
oct1665515413
9570381821
10248945419
11118583418
126b455777
133c7636a8
14250c3799
1516cc6914
hexed69b0b

248945419 has 4 divisors (see below), whose sum is σ = 248977120. Its totient is φ = 248913720.

The previous prime is 248945413. The next prime is 248945461. The reversal of 248945419 is 914549842.

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 248945419 - 25 = 248945387 is a prime.

It is a super-2 number, since 2×2489454192 = 123947643282171122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248945413) 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, 5662 + ... + 23020.

It is an arithmetic number, because the mean of its divisors is an integer number (62244280).

Almost surely, 2248945419 is an apocalyptic number.

248945419 is a deficient number, since it is larger than the sum of its proper divisors (31701).

248945419 is a wasteful number, since it uses less digits than its factorization.

248945419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31700.

The product of its digits is 414720, while the sum is 46.

The square root of 248945419 is about 15778.0042781082. The cubic root of 248945419 is about 629.0734839665.

The spelling of 248945419 in words is "two hundred forty-eight million, nine hundred forty-five thousand, four hundred nineteen".

Divisors: 1 14341 17359 248945419