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75250145663 = 7114783379661
BaseRepresentation
bin100011000010101000…
…0100001100101111111
321012020022102110202222
41012011100201211333
52213103014130123
654322555435555
75302524453530
oct1060520414577
9235208373688
1075250145663
1129a05822230
1212701155bbb
13713306a014
1438dbdd0687
151e564c96c8
hex118542197f

75250145663 has 64 divisors (see below), whose sum is σ = 97371832320. Its totient is φ = 56462313600.

The previous prime is 75250145651. The next prime is 75250145731. The reversal of 75250145663 is 36654105257.

It is a happy number.

It is not a de Polignac number, because 75250145663 - 28 = 75250145407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75250135663) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 113842553 + ... + 113843213.

It is an arithmetic number, because the mean of its divisors is an integer number (1521434880).

Almost surely, 275250145663 is an apocalyptic number.

75250145663 is a deficient number, since it is larger than the sum of its proper divisors (22121686657).

75250145663 is a wasteful number, since it uses less digits than its factorization.

75250145663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188.

The product of its (nonzero) digits is 756000, while the sum is 44.

The spelling of 75250145663 in words is "seventy-five billion, two hundred fifty million, one hundred forty-five thousand, six hundred sixty-three".

Divisors: 1 7 11 47 77 83 329 379 517 581 661 913 2653 3619 3901 4169 4627 6391 7271 17813 27307 29183 31067 31457 42911 50897 54863 124691 195943 217469 220199 250519 300377 341737 346027 384041 603493 1371601 1478479 1753633 2392159 2422189 2578561 2755709 4224451 10349353 11774393 16263269 18049927 19289963 20793077 28364171 82420751 113842883 129518323 145551539 198549197 228723847 906628261 977274619 1601066929 6840922333 10750020809 75250145663