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248448551 = 1342314517
BaseRepresentation
bin11101100111100…
…00011000100111
3122022111111100012
432303300120213
51002100323201
640353040435
76104530541
oct1663603047
9568444305
10248448551
1111827408a
126b25611b
133c61b4a0
1424dd4691
1516c295bb
hexecf0627

248448551 has 8 divisors (see below), whose sum is σ = 267682464. Its totient is φ = 229232160.

The previous prime is 248448527. The next prime is 248448559. The reversal of 248448551 is 155844842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 248448551 - 222 = 244254247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248448499 and 248448508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248448559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52745 + ... + 57261.

It is an arithmetic number, because the mean of its divisors is an integer number (33460308).

Almost surely, 2248448551 is an apocalyptic number.

248448551 is a deficient number, since it is larger than the sum of its proper divisors (19233913).

248448551 is a wasteful number, since it uses less digits than its factorization.

248448551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8761.

The product of its digits is 204800, while the sum is 41.

The square root of 248448551 is about 15762.2508227727. The cubic root of 248448551 is about 628.6546844487.

The spelling of 248448551 in words is "two hundred forty-eight million, four hundred forty-eight thousand, five hundred fifty-one".

Divisors: 1 13 4231 4517 55003 58721 19111427 248448551