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68982724 = 2217245681
BaseRepresentation
bin1000001110010…
…01011111000100
311210210200111201
410013021133010
5120124421344
610502312244
71465225546
oct407113704
9153720451
1068982724
1135a36818
121b128684
13113a37a5
149239696
1560c94d4
hex41c97c4

68982724 has 6 divisors (see below), whose sum is σ = 120719774. Its totient is φ = 34491360.

The previous prime is 68982713. The next prime is 68982751. The reversal of 68982724 is 42728986.

It can be written as a sum of positive squares in only one way, i.e., 68392900 + 589824 = 8270^2 + 768^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8622837 + ... + 8622844.

Almost surely, 268982724 is an apocalyptic number.

It is an amenable number.

68982724 is a deficient number, since it is larger than the sum of its proper divisors (51737050).

68982724 is a wasteful number, since it uses less digits than its factorization.

68982724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17245685 (or 17245683 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 68982724 is about 8305.5839048197. The cubic root of 68982724 is about 410.1223588796.

The spelling of 68982724 in words is "sixty-eight million, nine hundred eighty-two thousand, seven hundred twenty-four".

Divisors: 1 2 4 17245681 34491362 68982724