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242890752 = 2113133041
BaseRepresentation
bin11100111101000…
…11100000000000
3121221001010110210
432132203200000
5444140001002
640033554120
76006352206
oct1636434000
9557033423
10242890752
11115118465
1269415940
133b423850
1424389076
15164cc96c
hexe7a3800

242890752 has 96 divisors (see below), whose sum is σ = 697591440. Its totient is φ = 74711040.

The previous prime is 242890733. The next prime is 242890777. The reversal of 242890752 is 257098242.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 242890752.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78352 + ... + 81392.

Almost surely, 2242890752 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 242890752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348795720).

242890752 is an abundant number, since it is smaller than the sum of its proper divisors (454700688).

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

242890752 is a wasteful number, since it uses less digits than its factorization.

242890752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3079 (or 3059 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 242890752 is about 15584.9527429505. The cubic root of 242890752 is about 623.9316164378.

The spelling of 242890752 in words is "two hundred forty-two million, eight hundred ninety thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 128 156 192 208 256 312 384 416 512 624 768 832 1024 1248 1536 1664 2048 2496 3041 3072 3328 4992 6082 6144 6656 9123 9984 12164 13312 18246 19968 24328 26624 36492 39533 39936 48656 72984 79066 79872 97312 118599 145968 158132 194624 237198 291936 316264 389248 474396 583872 632528 778496 948792 1167744 1265056 1556992 1897584 2335488 2530112 3113984 3795168 4670976 5060224 6227968 7590336 9341952 10120448 15180672 18683904 20240896 30361344 40481792 60722688 80963584 121445376 242890752