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52668637371 = 347599716231
BaseRepresentation
bin110001000011010010…
…111010000010111011
312000221120022222220000
4301003102322002323
51330331132343441
640110131404043
73543115013430
oct610322720273
9160846288800
1052668637371
1120378088889
12a25a753623
134c748c51ac
142798d1bb87
151583cd22b6
hexc434ba0bb

52668637371 has 80 divisors (see below), whose sum is σ = 92389946880. Its totient is φ = 29279439360.

The previous prime is 52668637369. The next prime is 52668637403. The reversal of 52668637371 is 17373686625.

52668637371 is a `hidden beast` number, since 5 + 266 + 8 + 6 + 3 + 7 + 371 = 666.

It is not a de Polignac number, because 52668637371 - 21 = 52668637369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52668637171) 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 79 ways as a sum of consecutive naturals, for example, 3236826 + ... + 3253056.

It is an arithmetic number, because the mean of its divisors is an integer number (1154874336).

Almost surely, 252668637371 is an apocalyptic number.

52668637371 is a deficient number, since it is larger than the sum of its proper divisors (39721309509).

52668637371 is a wasteful number, since it uses less digits than its factorization.

52668637371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16406 (or 16397 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The spelling of 52668637371 in words is "fifty-two billion, six hundred sixty-eight million, six hundred thirty-seven thousand, three hundred seventy-one".

Divisors: 1 3 7 9 21 27 59 63 81 97 177 189 291 413 531 567 679 873 1239 1593 2037 2619 3717 4779 5723 6111 7857 11151 16231 17169 18333 33453 40061 48693 51507 54999 113617 120183 146079 154521 340851 360549 438237 463563 957629 1022553 1081647 1314711 1574407 2872887 3067659 3244941 4723221 6703403 8618661 9202977 11020849 14169663 20110209 25855983 33062547 42508989 60330627 77567949 92890013 99187641 127526967 180991881 278670039 297562923 542975643 650230091 836010117 892688769 1950690273 2508030351 5852070819 7524091053 17556212457 52668637371