Search a number
-
+
193907241801 = 327213216132
BaseRepresentation
bin1011010010010111000…
…1011011001101001001
3200112111201200111111100
42310211301123031021
511134110223214201
6225025121052013
720003126234400
oct2644561331511
9615451614440
10193907241801
1175265645849
12316b7187009
1315392c76c00
149556c48637
15509d617886
hex2d25c5b349

193907241801 has 81 divisors (see below), whose sum is σ = 353026544949. Its totient is φ = 102217332672.

The previous prime is 193907241793. The next prime is 193907241811. The reversal of 193907241801 is 108142709391.

The square root of 193907241801 is 440349.

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

193907241801 is a `hidden beast` number, since 19 + 390 + 7 + 241 + 8 + 0 + 1 = 666.

193907241801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13248240201 + 180659001600 = 115101^2 + 425040^2 .

It is not a de Polignac number, because 193907241801 - 23 = 193907241793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (193907241811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 120214471 + ... + 120216083.

Almost surely, 2193907241801 is an apocalyptic number.

193907241801 is the 440349-th square number.

193907241801 is the 220175-th centered octagonal number.

It is an amenable number.

193907241801 is a deficient number, since it is larger than the sum of its proper divisors (159119303148).

193907241801 is an equidigital number, since it uses as much as digits as its factorization.

193907241801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3272 (or 1636 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 193907241801 in words is "one hundred ninety-three billion, nine hundred seven million, two hundred forty-one thousand, eight hundred one".

Divisors: 1 3 7 9 13 21 39 49 63 91 117 147 169 273 441 507 637 819 1183 1521 1613 1911 3549 4839 5733 8281 10647 11291 14517 20969 24843 33873 62907 74529 79037 101619 146783 188721 237111 272597 440349 711333 817791 1027481 1321047 1908179 2453373 2601769 3082443 5724537 7805307 9247329 13357253 17173611 18212383 23415921 33822997 40071759 54637149 101468991 120215277 127486681 163911447 236760979 304406973 382460043 439698961 710282937 1147380129 1319096883 1657326853 2130848811 3077892727 3957290649 4971980559 9233678181 14915941677 21545249089 27701034543 64635747267 193907241801