Search a number
-
+
68543101 = 1110360497
BaseRepresentation
bin1000001010111…
…10001001111101
311202222100110101
410011132021331
5120021334401
610445041101
71461415054
oct405361175
9152870411
1068543101
11357664a0
121ab56191
131127b663
14916339b
15603e101
hex415e27d

68543101 has 8 divisors (see below), whose sum is σ = 75501504. Its totient is φ = 61705920.

The previous prime is 68543093. The next prime is 68543107. The reversal of 68543101 is 10134586.

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

It is a cyclic number.

It is not a de Polignac number, because 68543101 - 23 = 68543093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68543101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68543107) 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, 29116 + ... + 31381.

It is an arithmetic number, because the mean of its divisors is an integer number (9437688).

Almost surely, 268543101 is an apocalyptic number.

It is an amenable number.

68543101 is a deficient number, since it is larger than the sum of its proper divisors (6958403).

68543101 is a wasteful number, since it uses less digits than its factorization.

68543101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60611.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 68543101 is about 8279.0760957972. The cubic root of 68543101 is about 409.2492726661.

Adding to 68543101 its reverse (10134586), we get a palindrome (78677687).

It can be divided in two parts, 68543 and 101, that added together give a square (68644 = 2622).

The spelling of 68543101 in words is "sixty-eight million, five hundred forty-three thousand, one hundred one".

Divisors: 1 11 103 1133 60497 665467 6231191 68543101