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75197705284 = 221325321992
BaseRepresentation
bin100011000001000100…
…0011110110001000100
321012002122202020002201
41012002020132301010
52213001103032114
654313443444244
75301316643242
oct1060210366104
9235078666081
1075197705284
1129989164a79
12126a7686684
137125238c00
1438d505d792
151e51abb874
hex118221ec44

75197705284 has 81 divisors (see below), whose sum is σ = 145970286903. Its totient is φ = 33880676544.

The previous prime is 75197705279. The next prime is 75197705339. The reversal of 75197705284 is 48250779157.

The square root of 75197705284 is 274222.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1951695684 + 73246009600 = 44178^2 + 270640^2 .

It is a Duffinian number.

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 26 ways as a sum of consecutive naturals, for example, 377877817 + ... + 377878015.

Almost surely, 275197705284 is an apocalyptic number.

75197705284 is the 274222-nd square number.

It is an amenable number.

75197705284 is a deficient number, since it is larger than the sum of its proper divisors (70772581619).

75197705284 is a wasteful number, since it uses less digits than its factorization.

75197705284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 55.

The spelling of 75197705284 in words is "seventy-five billion, one hundred ninety-seven million, seven hundred five thousand, two hundred eighty-four".

Divisors: 1 2 4 13 26 52 53 106 169 199 212 338 398 676 689 796 1378 2587 2756 2809 5174 5618 8957 10348 10547 11236 17914 21094 33631 35828 36517 39601 42188 67262 73034 79202 134524 137111 146068 158404 274222 474721 514813 548444 558991 949442 1029626 1117982 1782443 1898884 2059252 2098853 2235964 3564886 4197706 6692569 7129772 7266883 8395412 13385138 14533766 26770276 27285089 29067532 54570178 94469479 109140356 111239209 188938958 222478418 354706157 377877916 444956836 709412314 1418824628 1446109717 2892219434 5784438868 18799426321 37598852642 75197705284