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245605248 = 27327219229
BaseRepresentation
bin11101010001110…
…10001110000000
3122010011001001200
432220322032000
51000333331443
640212101200
76041416200
oct1650721600
9563131050
10245605248
11116701949
126a304800
133bb64265
1424894400
1516866dd3
hexea3a380

245605248 has 288 divisors, whose sum is σ = 869193000. Its totient is φ = 66189312.

The previous prime is 245605237. The next prime is 245605249. The reversal of 245605248 is 842506542.

It is a happy number.

245605248 is a `hidden beast` number, since 2 + 4 + 5 + 605 + 2 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245605249) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1072398 + ... + 1072626.

Almost surely, 2245605248 is an apocalyptic number.

245605248 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245605248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434596500).

245605248 is an abundant number, since it is smaller than the sum of its proper divisors (623587752).

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

245605248 is a wasteful number, since it uses less digits than its factorization.

245605248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 245605248 is about 15671.7978547453. The cubic root of 245605248 is about 626.2473206765.

The spelling of 245605248 in words is "two hundred forty-five million, six hundred five thousand, two hundred forty-eight".