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51255443450132 = 2219210915711231847
BaseRepresentation
bin10111010011101110101100…
…11111111110100100010100
320201110222020222111110112022
423221313112133332210110
523204232122010401012
6301002231535312312
713540040445603665
oct1351672637764424
9221428228443468
1051255443450132
1115371347667949
1258b979437b698
13227a4a17518bc
14c92ac339936c
155dd41203e472
hex2e9dd67fe914

51255443450132 has 144 divisors (see below), whose sum is σ = 96281104993920. Its totient is φ = 23868713366784.

The previous prime is 51255443450131. The next prime is 51255443450143. The reversal of 51255443450132 is 23105434455215.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51255443450131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27750645233 + ... + 27750647079.

It is an arithmetic number, because the mean of its divisors is an integer number (668618784680).

Almost surely, 251255443450132 is an apocalyptic number.

It is an amenable number.

51255443450132 is a deficient number, since it is larger than the sum of its proper divisors (45025661543788).

51255443450132 is a wasteful number, since it uses less digits than its factorization.

51255443450132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278 (or 3257 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 44.

The spelling of 51255443450132 in words is "fifty-one trillion, two hundred fifty-five billion, four hundred forty-three million, four hundred fifty thousand, one hundred thirty-two".

Divisors: 1 2 4 19 38 76 109 157 218 314 361 436 628 722 1123 1444 1847 2071 2246 2983 3694 4142 4492 5966 7388 8284 11932 17113 21337 34226 35093 39349 42674 56677 68452 70186 78698 85348 113354 122407 140372 157396 176311 201323 226708 244814 289979 325147 352622 402646 405403 489628 579958 650294 666767 705244 805292 810806 1159916 1300588 1333534 1621612 2074181 2325733 2667068 3349909 3825137 4148362 4651466 5509601 6177793 6699818 7650274 8296724 9302932 11019202 12355586 13399636 15300548 19217899 22038404 24711172 31607711 38435798 39409439 44188927 63215422 63648271 72677603 76871596 78818878 88377854 104682419 126430844 127296542 145355206 157637756 176755708 209364838 226085729 254593084 290710412 325646417 365140081 418729676 452171458 600546509 651292834 730280162 748779341 904342916 1201093018 1302585668 1460560324 1497558682 2402186036 2995117364 4295628851 6187281923 6937661539 8591257702 11410383671 12374563846 13875323078 17182515404 22820767342 24749127692 27750646156 35495459453 45641534684 70990918906 81616948169 117558356537 141981837812 163233896338 235116713074 326467792676 470233426148 674413729607 1348827459214 2697654918428 12813860862533 25627721725066 51255443450132