[go: up one dir, main page]

Search a number
-
+
68683605 = 354578907
BaseRepresentation
bin1000001100000…
…00011101010101
311210020111012020
410012000131111
5120040333410
610452043353
71462541514
oct406003525
9153214166
1068683605
1135852011
121b003559
13112ca5b3
14919c67b
15606aa70
hex4180755

68683605 has 8 divisors (see below), whose sum is σ = 109893792. Its totient is φ = 36631248.

The previous prime is 68683597. The next prime is 68683607. The reversal of 68683605 is 50638686.

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

It is not a de Polignac number, because 68683605 - 23 = 68683597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68683607) 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, 2289439 + ... + 2289468.

It is an arithmetic number, because the mean of its divisors is an integer number (13736724).

Almost surely, 268683605 is an apocalyptic number.

It is an amenable number.

68683605 is a deficient number, since it is larger than the sum of its proper divisors (41210187).

68683605 is a wasteful number, since it uses less digits than its factorization.

68683605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4578915.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 68683605 is about 8287.5572396213. The cubic root of 68683605 is about 409.5287168592.

The spelling of 68683605 in words is "sixty-eight million, six hundred eighty-three thousand, six hundred five".

Divisors: 1 3 5 15 4578907 13736721 22894535 68683605