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248730438 = 23113768643
BaseRepresentation
bin11101101001101…
…01001101000110
3122100000211000110
432310311031012
51002133333223
640403053450
76110113425
oct1664651506
9570024013
10248730438
11118446950
126b371286
133c6b9898
14250692bc
1516c82d93
hexed35346

248730438 has 16 divisors (see below), whose sum is σ = 542684736. Its totient is φ = 75372840.

The previous prime is 248730421. The next prime is 248730457. The reversal of 248730438 is 834037842.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 248730396 and 248730405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1884256 + ... + 1884387.

It is an arithmetic number, because the mean of its divisors is an integer number (33917796).

Almost surely, 2248730438 is an apocalyptic number.

248730438 is an abundant number, since it is smaller than the sum of its proper divisors (293954298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

248730438 is a wasteful number, since it uses less digits than its factorization.

248730438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3768659.

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 248730438 is about 15771.1901263031. The cubic root of 248730438 is about 628.8923494898.

The spelling of 248730438 in words is "two hundred forty-eight million, seven hundred thirty thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 11 22 33 66 3768643 7537286 11305929 22611858 41455073 82910146 124365219 248730438