Search a number
-
+
6860000990 = 251740352947
BaseRepresentation
bin1100110001110001…
…10100111011011110
3122201002022011020202
412120320310323132
5103022130012430
63052413343502
7331666021613
oct63070647336
918632264222
106860000990
112a00323307
1213b5497b92
138542c91ab
1449111650a
152a23b2d45
hex198e34ede

6860000990 has 16 divisors (see below), whose sum is σ = 13074355152. Its totient is φ = 2582588544.

The previous prime is 6860000981. The next prime is 6860001017. The reversal of 6860000990 is 990000686.

It is a super-2 number, since 2×68600009902 = 94119227165601960200, which contains 22 as substring.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 20176304 + ... + 20176643.

It is an arithmetic number, because the mean of its divisors is an integer number (817147197).

Almost surely, 26860000990 is an apocalyptic number.

6860000990 is a deficient number, since it is larger than the sum of its proper divisors (6214354162).

6860000990 is a wasteful number, since it uses less digits than its factorization.

6860000990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40352971.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 6860000990 is about 82825.1229398424. The cubic root of 6860000990 is about 1900.0924230203.

The spelling of 6860000990 in words is "six billion, eight hundred sixty million, nine hundred ninety", and thus it is an aban number.

Divisors: 1 2 5 10 17 34 85 170 40352947 80705894 201764735 403529470 686000099 1372000198 3430000495 6860000990