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69489841 = 835771451
BaseRepresentation
bin1000010010001…
…01010010110001
311211202110010211
410021011102301
5120242133331
610521224121
71502440201
oct411052261
9154673124
1069489841
1136252823
121b332041
1311520565
14932c401
1561798b1
hex42454b1

69489841 has 8 divisors (see below), whose sum is σ = 70497504. Its totient is φ = 68486400.

The previous prime is 69489803. The next prime is 69489851. The reversal of 69489841 is 14898496.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-69489841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69489851) 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, 47166 + ... + 48616.

It is an arithmetic number, because the mean of its divisors is an integer number (8812188).

Almost surely, 269489841 is an apocalyptic number.

It is an amenable number.

69489841 is a deficient number, since it is larger than the sum of its proper divisors (1007663).

69489841 is a wasteful number, since it uses less digits than its factorization.

69489841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111.

The product of its digits is 497664, while the sum is 49.

The square root of 69489841 is about 8336.0566816691. The cubic root of 69489841 is about 411.1248922388.

The spelling of 69489841 in words is "sixty-nine million, four hundred eighty-nine thousand, eight hundred forty-one".

Divisors: 1 83 577 1451 47891 120433 837227 69489841