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248806485 = 355474357
BaseRepresentation
bin11101101010001…
…11110001010101
3122100011200100000
432311013301111
51002143301420
640404441513
76110551224
oct1665076125
9570150300
10248806485
11118498aa4
126b3a9299
133c715395
1425088cbb
1516c9a690
hexed47c55

248806485 has 48 divisors (see below), whose sum is σ = 456857856. Its totient is φ = 129843648.

The previous prime is 248806483. The next prime is 248806489. The reversal of 248806485 is 584608842.

It is not a de Polignac number, because 248806485 - 21 = 248806483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 248806485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248806483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54927 + ... + 59283.

It is an arithmetic number, because the mean of its divisors is an integer number (9517872).

Almost surely, 2248806485 is an apocalyptic number.

It is an amenable number.

248806485 is a deficient number, since it is larger than the sum of its proper divisors (208051371).

248806485 is an equidigital number, since it uses as much as digits as its factorization.

248806485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4424 (or 4412 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The square root of 248806485 is about 15773.6008888269. The cubic root of 248806485 is about 628.9564356060.

The spelling of 248806485 in words is "two hundred forty-eight million, eight hundred six thousand, four hundred eighty-five".

Divisors: 1 3 5 9 15 27 45 47 81 135 141 235 243 405 423 705 1215 1269 2115 3807 4357 6345 11421 13071 19035 21785 39213 57105 65355 117639 196065 204779 352917 588195 614337 1023895 1058751 1764585 1843011 3071685 5293755 5529033 9215055 16587099 27645165 49761297 82935495 248806485