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187539231364 = 221724722712
BaseRepresentation
bin1010111010101000110…
…1011001001010000100
3122221001221011001101221
42232222031121022010
511033040020400424
6222053200330124
716356253110322
oct2565215311204
9587057131357
10187539231364
1172598009301
123041a613944
13148b988a2b4
149111200d12
154d295399e4
hex2baa359284

187539231364 has 81 divisors (see below), whose sum is σ = 357529647909. Its totient is φ = 86057285760.

The previous prime is 187539231323. The next prime is 187539231401. The reversal of 187539231364 is 463132935781.

The square root of 187539231364 is 433058.

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

It can be written as a sum of positive squares in only one way, i.e., 146008052100 + 41531179264 = 382110^2 + 203792^2 .

It is a super-3 number, since 3×1875392313643 (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

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 26 ways as a sum of consecutive naturals, for example, 692026549 + ... + 692026819.

Almost surely, 2187539231364 is an apocalyptic number.

187539231364 is the 433058-th square number.

It is an amenable number.

187539231364 is a deficient number, since it is larger than the sum of its proper divisors (169990416545).

187539231364 is an equidigital number, since it uses as much as digits as its factorization.

187539231364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 337 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 52.

The spelling of 187539231364 in words is "one hundred eighty-seven billion, five hundred thirty-nine million, two hundred thirty-one thousand, three hundred sixty-four".

Divisors: 1 2 4 17 34 47 68 94 188 271 289 542 578 799 1084 1156 1598 2209 3196 4418 4607 8836 9214 12737 13583 18428 25474 27166 37553 50948 54332 73441 75106 78319 146882 150212 156638 216529 293764 313276 433058 598639 638401 866116 1197278 1248497 1276802 2394556 2496994 2553604 3451727 3680993 4993988 6903454 7361986 10176863 13806908 14723972 20353726 21224449 40707452 42448898 58679359 84897796 117358718 162231169 173006671 234717436 324462338 346013342 648924676 692026684 997549103 1995098206 2757929873 3990196412 5515859746 11031719492 46884807841 93769615682 187539231364