Search a number
-
+
68713790 = 2519335603
BaseRepresentation
bin1000001100001…
…11110100111110
311210022000121012
410012013310332
5120042320130
610452435222
71463025515
oct406076476
9153260535
1068713790
1135872762
121b018b12
131130b262
1491a967c
156074995
hex4187d3e

68713790 has 16 divisors (see below), whose sum is σ = 124329168. Its totient is φ = 27342336.

The previous prime is 68713787. The next prime is 68713807. The reversal of 68713790 is 9731786.

It is a congruent number.

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, 15872 + ... + 19731.

It is an arithmetic number, because the mean of its divisors is an integer number (7770573).

Almost surely, 268713790 is an apocalyptic number.

68713790 is a deficient number, since it is larger than the sum of its proper divisors (55615378).

68713790 is a wasteful number, since it uses less digits than its factorization.

68713790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35803.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 68713790 is about 8289.3781431420. The cubic root of 68713790 is about 409.5887011590.

The spelling of 68713790 in words is "sixty-eight million, seven hundred thirteen thousand, seven hundred ninety".

Divisors: 1 2 5 10 193 386 965 1930 35603 71206 178015 356030 6871379 13742758 34356895 68713790