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68982906 = 23173471949
BaseRepresentation
bin1000001110010…
…01100001111010
311210210200202110
410013021201322
5120124423111
610502313150
71465226226
oct407114172
9153720673
1068982906
1135a36973
121b1287b6
13113a38b5
149239786
1560c95a6
hex41c987a

68982906 has 32 divisors (see below), whose sum is σ = 146577600. Its totient is φ = 21568256.

The previous prime is 68982847. The next prime is 68982913. The reversal of 68982906 is 60928986.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34420 + ... + 36368.

It is an arithmetic number, because the mean of its divisors is an integer number (4580550).

Almost surely, 268982906 is an apocalyptic number.

68982906 is an abundant number, since it is smaller than the sum of its proper divisors (77594694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68982906 is a wasteful number, since it uses less digits than its factorization.

68982906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 68982906 is about 8305.5948612968. The cubic root of 68982906 is about 410.1227195603.

The spelling of 68982906 in words is "sixty-eight million, nine hundred eighty-two thousand, nine hundred six".

Divisors: 1 2 3 6 17 34 51 102 347 694 1041 1949 2082 3898 5847 5899 11694 11798 17697 33133 35394 66266 99399 198798 676303 1352606 2028909 4057818 11497151 22994302 34491453 68982906