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68472541 = 232977067
BaseRepresentation
bin1000001010011…
…00111011011101
311202211202200001
410011030323131
5120012110131
610443334301
71461002254
oct405147335
9152752601
1068472541
1135718485
121ab21391
13112554c7
14914579b
156028261
hex414cedd

68472541 has 4 divisors (see below), whose sum is σ = 71449632. Its totient is φ = 65495452.

The previous prime is 68472511. The next prime is 68472553. The reversal of 68472541 is 14527486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68472541 - 213 = 68464349 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 68472541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68472511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1488511 + ... + 1488556.

It is an arithmetic number, because the mean of its divisors is an integer number (17862408).

Almost surely, 268472541 is an apocalyptic number.

It is an amenable number.

68472541 is a deficient number, since it is larger than the sum of its proper divisors (2977091).

68472541 is a wasteful number, since it uses less digits than its factorization.

68472541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977090.

The product of its digits is 53760, while the sum is 37.

The square root of 68472541 is about 8274.8136534909. The cubic root of 68472541 is about 409.1087939371.

The spelling of 68472541 in words is "sixty-eight million, four hundred seventy-two thousand, five hundred forty-one".

Divisors: 1 23 2977067 68472541