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57445572450 = 2352773749453
BaseRepresentation
bin110101100000000001…
…011101111101100010
312111021110222102220110
4311200001131331202
51420122031304300
642220133552150
74102361211030
oct654001357542
9174243872813
1057445572450
11223a9589912
12b1724a5656
1355564822b6
142acd515550
151763375550
hexd6005df62

57445572450 has 96 divisors (see below), whose sum is σ = 165047757696. Its totient is φ = 12950530560.

The previous prime is 57445572433. The next prime is 57445572479. The reversal of 57445572450 is 5427554475.

It is a self number, because there is not a number n which added to its sum of digits gives 57445572450.

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 47 ways as a sum of consecutive naturals, for example, 298077 + ... + 451376.

It is an arithmetic number, because the mean of its divisors is an integer number (1719247476).

Almost surely, 257445572450 is an apocalyptic number.

57445572450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57445572450 is an abundant number, since it is smaller than the sum of its proper divisors (107602185246).

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

57445572450 is a wasteful number, since it uses less digits than its factorization.

57445572450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749548 (or 749543 counting only the distinct ones).

The product of its (nonzero) digits is 3920000, while the sum is 48.

The spelling of 57445572450 in words is "fifty-seven billion, four hundred forty-five million, five hundred seventy-two thousand, four hundred fifty".

Divisors: 1 2 3 5 6 7 10 14 15 21 25 30 35 42 50 70 73 75 105 146 150 175 210 219 350 365 438 511 525 730 1022 1050 1095 1533 1825 2190 2555 3066 3650 5110 5475 7665 10950 12775 15330 25550 38325 76650 749453 1498906 2248359 3747265 4496718 5246171 7494530 10492342 11241795 15738513 18736325 22483590 26230855 31477026 37472650 52461710 54710069 56208975 78692565 109420138 112417950 131154275 157385130 164130207 262308550 273550345 328260414 382970483 393462825 547100690 765940966 786925650 820651035 1148911449 1367751725 1641302070 1914852415 2297822898 2735503450 3829704830 4103255175 5744557245 8206510350 9574262075 11489114490 19148524150 28722786225 57445572450