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10497846681 = 3274172412
BaseRepresentation
bin10011100011011100…
…00110110110011001
31000002121112212101100
421301232012312121
5132444422043211
64453405142013
7521101140000
oct116156066631
930077485340
1010497846681
1144a7840653
12204b85a909
13cb3b9a3ca
14718317c37
1541694d156
hex271b86d99

10497846681 has 135 divisors (see below), whose sum is σ = 19261056893. Its totient is φ = 5508195840.

The previous prime is 10497846679. The next prime is 10497846683. The reversal of 10497846681 is 18664879401.

The square root of 10497846681 is 102459.

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

10497846681 is a `hidden beast` number, since 10 + 4 + 97 + 8 + 466 + 81 = 666.

It is an interprime number because it is at equal distance from previous prime (10497846679) and next prime (10497846683).

It can be written as a sum of positive squares in 4 ways, for example, as 739568025 + 9758278656 = 27195^2 + 98784^2 .

It is not a de Polignac number, because 10497846681 - 21 = 10497846679 is a prime.

It is a super-2 number, since 2×104978466812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10497846683) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 256045021 + ... + 256045061.

Almost surely, 210497846681 is an apocalyptic number.

10497846681 is the 102459-th square number.

10497846681 is the 51230-th centered octagonal number.

It is an amenable number.

10497846681 is a deficient number, since it is larger than the sum of its proper divisors (8763210212).

10497846681 is an frugal number, since it uses more digits than its factorization.

10497846681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 10497846681 in words is "ten billion, four hundred ninety-seven million, eight hundred forty-six thousand, six hundred eighty-one".

Divisors: 1 3 7 9 17 21 41 49 51 63 119 123 147 153 287 289 343 357 369 441 697 833 861 867 1029 1071 1681 2009 2023 2091 2401 2499 2583 2601 3087 4879 5043 5831 6027 6069 6273 7203 7497 11767 11849 14063 14161 14637 15129 17493 18081 18207 21609 28577 34153 35301 35547 40817 42189 42483 43911 52479 82369 82943 85731 98441 99127 102459 105903 106641 122451 126567 127449 200039 239071 247107 248829 257193 295323 297381 307377 367353 485809 576583 580601 600117 693889 717213 741321 746487 885969 892143 1400273 1457427 1673497 1729749 1741803 1800351 2081667 2151639 3400663 4036081 4064207 4200819 4372281 5020491 5189247 5225409 6245001 9801911 10201989 12108243 12192621 12602457 15061473 23804641 28449449 29405733 30605967 36324729 36577863 68613377 71413923 85348347 88217199 166632487 205840131 214241769 256045041 499897461 617520393 1166427409 1499692383 3499282227 10497846681