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55750344 = 233131723457
BaseRepresentation
bin1101010010101…
…0111011001000
310212220102002120
43110222323020
5103233002334
65310531240
71244604306
oct324527310
9125812076
1055750344
1129519071
1216806b20
13b71c890
147593276
154d63949
hex352aec8

55750344 has 128 divisors (see below), whose sum is σ = 166199040. Its totient is φ = 15409152.

The previous prime is 55750301. The next prime is 55750393. The reversal of 55750344 is 44305755.

55750344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×557503442 = 6216201712236672, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121764 + ... + 122220.

It is an arithmetic number, because the mean of its divisors is an integer number (1298430).

Almost surely, 255750344 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 55750344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83099520).

55750344 is an abundant number, since it is smaller than the sum of its proper divisors (110448696).

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

55750344 is a wasteful number, since it uses less digits than its factorization.

55750344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 33.

The square root of 55750344 is about 7466.6152974423. The cubic root of 55750344 is about 382.0168482102.

The spelling of 55750344 in words is "fifty-five million, seven hundred fifty thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 13 17 23 24 26 34 39 46 51 52 68 69 78 92 102 104 136 138 156 184 204 221 276 299 312 391 408 442 457 552 598 663 782 884 897 914 1173 1196 1326 1371 1564 1768 1794 1828 2346 2392 2652 2742 3128 3588 3656 4692 5083 5304 5484 5941 7176 7769 9384 10166 10511 10968 11882 15249 15538 17823 20332 21022 23307 23764 30498 31076 31533 35646 40664 42044 46614 47528 60996 62152 63066 71292 84088 93228 100997 121992 126132 136643 142584 178687 186456 201994 252264 273286 302991 357374 403988 409929 536061 546572 605982 714748 807976 819858 1072122 1093144 1211964 1429496 1639716 2144244 2322931 2423928 3279432 4288488 4645862 6968793 9291724 13937586 18583448 27875172 55750344