Search a number
-
+
10649068690 = 2513451918127
BaseRepresentation
bin10011110101011101…
…11110010010010010
31000111011002201222111
421322232332102102
5133302130144230
64520410255534
7524615406331
oct117256762222
930434081874
1010649068690
114575137a17
1220924275aa
1310093065a0
1473043dd18
15424d6e92a
hex27abbe492

10649068690 has 32 divisors (see below), whose sum is σ = 20648517120. Its totient is φ = 3930876864.

The previous prime is 10649068667. The next prime is 10649068849. The reversal of 10649068690 is 9686094601.

It is a super-2 number, since 2×106490686902 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 578407 + ... + 596533.

It is an arithmetic number, because the mean of its divisors is an integer number (645266160).

Almost surely, 210649068690 is an apocalyptic number.

10649068690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10649068690 is a deficient number, since it is larger than the sum of its proper divisors (9999448430).

10649068690 is a wasteful number, since it uses less digits than its factorization.

10649068690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22666.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 10649068690 in words is "ten billion, six hundred forty-nine million, sixty-eight thousand, six hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 4519 9038 18127 22595 36254 45190 58747 90635 117494 181270 235651 293735 471302 587470 1178255 2356510 81915913 163831826 409579565 819159130 1064906869 2129813738 5324534345 10649068690