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68210986 = 2432932707
BaseRepresentation
bin1000001000011…
…01000100101010
311202100110212211
410010031010222
5114430222421
610433555334
71455532564
oct404150452
9152313784
1068210986
1135559a18
121aa15b4a
131119343c
1490b8334
155ec59e1
hex410d12a

68210986 has 16 divisors (see below), whose sum is σ = 105092064. Its totient is φ = 33186384.

The previous prime is 68210963. The next prime is 68211019. The reversal of 68210986 is 68901286.

It is a super-2 number, since 2×682109862 = 9305477222184392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23845 + ... + 26551.

It is an arithmetic number, because the mean of its divisors is an integer number (6568254).

Almost surely, 268210986 is an apocalyptic number.

68210986 is a deficient number, since it is larger than the sum of its proper divisors (36881078).

68210986 is a wasteful number, since it uses less digits than its factorization.

68210986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3045.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 68210986 is about 8258.9942486964. The cubic root of 68210986 is about 408.5872175214.

It can be divided in two parts, 68210 and 986, that added together give a palindrome (69196).

The spelling of 68210986 in words is "sixty-eight million, two hundred ten thousand, nine hundred eighty-six".

Divisors: 1 2 43 86 293 586 2707 5414 12599 25198 116401 232802 793151 1586302 34105493 68210986