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248842131 = 3378925189
BaseRepresentation
bin11101101010100…
…00011110010011
3122100020111020020
432311100132103
51002200422011
640405314523
76111060156
oct1665203623
9570214206
10248842131
1111851285a
126b405a43
133c728685
1425097c9d
1516ca6006
hexed50793

248842131 has 16 divisors (see below), whose sum is σ = 344599200. Its totient is φ = 159591168.

The previous prime is 248842123. The next prime is 248842169. The reversal of 248842131 is 131248842.

It is not a de Polignac number, because 248842131 - 23 = 248842123 is a prime.

It is a super-2 number, since 2×2488421312 = 123844812321242322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 248842092 and 248842101.

It is not an unprimeable number, because it can be changed into a prime (248842831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2716 + ... + 22473.

It is an arithmetic number, because the mean of its divisors is an integer number (21537450).

Almost surely, 2248842131 is an apocalyptic number.

248842131 is a deficient number, since it is larger than the sum of its proper divisors (95757069).

248842131 is a wasteful number, since it uses less digits than its factorization.

248842131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25318.

The product of its digits is 12288, while the sum is 33.

The square root of 248842131 is about 15774.7307742478. The cubic root of 248842131 is about 628.9864706090.

The spelling of 248842131 in words is "two hundred forty-eight million, eight hundred forty-two thousand, one hundred thirty-one".

Divisors: 1 3 37 89 111 267 3293 9879 25189 75567 931993 2241821 2795979 6725463 82947377 248842131