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245038560 = 253513107367
BaseRepresentation
bin11101001101011…
…11110111100000
3122002002020201020
432212233313200
51000212213220
640152005440
76033536064
oct1646576740
9562066636
10245038560
11116355108
126a090880
133b9c6340
1424787aa4
15167a4040
hexe9afde0

245038560 has 192 divisors, whose sum is σ = 841300992. Its totient is φ = 59590656.

The previous prime is 245038529. The next prime is 245038571. The reversal of 245038560 is 65830542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 667497 + ... + 667863.

It is an arithmetic number, because the mean of its divisors is an integer number (4381776).

Almost surely, 2245038560 is an apocalyptic number.

245038560 is a gapful number since it is divisible by the number (20) 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 245038560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420650496).

245038560 is an abundant number, since it is smaller than the sum of its proper divisors (596262432).

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

245038560 is a wasteful number, since it uses less digits than its factorization.

245038560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 245038560 is about 15653.7075480539. The cubic root of 245038560 is about 625.7653003887.

The spelling of 245038560 in words is "two hundred forty-five million, thirty-eight thousand, five hundred sixty".