Search a number
-
+
68800042 = 2533112087
BaseRepresentation
bin1000001100111…
…00111000101010
311210110101220201
410012130320222
5120103100132
610454342414
71463535133
oct406347052
9153411821
1068800042
1135921543
121b05aa0a
131133b5ac
1491ccc8a
1560902e7
hex419ce2a

68800042 has 16 divisors (see below), whose sum is σ = 105535872. Its totient is φ = 33626320.

The previous prime is 68800033. The next prime is 68800049. The reversal of 68800042 is 24000886.

It is not an unprimeable number, because it can be changed into a prime (68800049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31923 + ... + 34009.

It is an arithmetic number, because the mean of its divisors is an integer number (6595992).

Almost surely, 268800042 is an apocalyptic number.

68800042 is a deficient number, since it is larger than the sum of its proper divisors (36735830).

68800042 is a wasteful number, since it uses less digits than its factorization.

68800042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 68800042 is about 8294.5790731055. The cubic root of 68800042 is about 409.7600062850.

The spelling of 68800042 in words is "sixty-eight million, eight hundred thousand, forty-two".

Divisors: 1 2 53 106 311 622 2087 4174 16483 32966 110611 221222 649057 1298114 34400021 68800042