Search a number
-
+
68408582 = 21141149509
BaseRepresentation
bin1000001001111…
…01010100000110
311202201111221012
410010331110012
5120003033312
610442122222
71460314634
oct404752406
9152644835
1068408582
1135684420
121aab0372
1311232368
14912a354
156014322
hex413d506

68408582 has 32 divisors (see below), whose sum is σ = 115668000. Its totient is φ = 30073600.

The previous prime is 68408551. The next prime is 68408611. The reversal of 68408582 is 28580486.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134144 + ... + 134652.

It is an arithmetic number, because the mean of its divisors is an integer number (3614625).

Almost surely, 268408582 is an apocalyptic number.

68408582 is a deficient number, since it is larger than the sum of its proper divisors (47259418).

68408582 is a wasteful number, since it uses less digits than its factorization.

68408582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712.

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 68408582 is about 8270.9480714124. The cubic root of 68408582 is about 408.9813738048.

The spelling of 68408582 in words is "sixty-eight million, four hundred eight thousand, five hundred eighty-two".

Divisors: 1 2 11 22 41 82 149 298 451 509 902 1018 1639 3278 5599 6109 11198 12218 20869 41738 67199 75841 134398 151682 229559 459118 834251 1668502 3109481 6218962 34204291 68408582