Search a number
-
+
68099245 = 549127739
BaseRepresentation
bin1000000111100…
…01110010101101
311202010210121021
410003301302231
5114413133440
610431334141
71454556034
oct403616255
9152123537
1068099245
1135492a75
121a981351
1311154616
14908971b
155ea284a
hex40f1cad

68099245 has 8 divisors (see below), whose sum is σ = 81888480. Its totient is φ = 54366480.

The previous prime is 68099243. The next prime is 68099257. The reversal of 68099245 is 54299086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68099245 - 21 = 68099243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68099243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11415 + ... + 16324.

It is an arithmetic number, because the mean of its divisors is an integer number (10236060).

Almost surely, 268099245 is an apocalyptic number.

It is an amenable number.

68099245 is a deficient number, since it is larger than the sum of its proper divisors (13789235).

68099245 is a wasteful number, since it uses less digits than its factorization.

68099245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28235.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 68099245 is about 8252.2266692087. The cubic root of 68099245 is about 408.3639841863.

The spelling of 68099245 in words is "sixty-eight million, ninety-nine thousand, two hundred forty-five".

Divisors: 1 5 491 2455 27739 138695 13619849 68099245