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245384944 = 247361733
BaseRepresentation
bin11101010000001…
…00011011110000
3122002201211212021
432220010123300
51000304304234
640203241224
76036511000
oct1650043360
9562654767
10245384944
11116571382
126a219214
133bab7bbc
1424838000
15168219b4
hexea046f0

245384944 has 80 divisors (see below), whose sum is σ = 564299200. Its totient is φ = 103299840.

The previous prime is 245384939. The next prime is 245384969. The reversal of 245384944 is 449483542.

It is a self number, because there is not a number n which added to its sum of digits gives 245384944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334402 + ... + 335134.

It is an arithmetic number, because the mean of its divisors is an integer number (7053740).

Almost surely, 2245384944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245384944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282149600).

245384944 is an abundant number, since it is smaller than the sum of its proper divisors (318914256).

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

245384944 is an equidigital number, since it uses as much as digits as its factorization.

245384944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 803 counting only the distinct ones).

The product of its digits is 552960, while the sum is 43.

The square root of 245384944 is about 15664.7676012126. The cubic root of 245384944 is about 626.0600200356.

The spelling of 245384944 in words is "two hundred forty-five million, three hundred eighty-four thousand, nine hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 49 56 61 98 112 122 196 244 343 392 427 488 686 733 784 854 976 1372 1466 1708 2744 2932 2989 3416 5131 5488 5864 5978 6832 10262 11728 11956 20524 20923 23912 35917 41048 41846 44713 47824 71834 82096 83692 89426 143668 167384 178852 251419 287336 312991 334768 357704 502838 574672 625982 715408 1005676 1251964 2011352 2190937 2503928 4022704 4381874 5007856 8763748 15336559 17527496 30673118 35054992 61346236 122692472 245384944