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69989941 = 717415743
BaseRepresentation
bin1000010101111…
…11011000110101
311212200212011001
410022333120311
5120404134231
610540043301
71506622210
oct412773065
9155625131
1069989941
113656452a
121b533531
1311667088
14941c777
156227b61
hex42bf635

69989941 has 8 divisors (see below), whose sum is σ = 80048384. Its totient is φ = 59946480.

The previous prime is 69989923. The next prime is 69990029. The reversal of 69989941 is 14998996.

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 69989941 - 213 = 69981749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69989921) 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, 9316 + ... + 15058.

It is an arithmetic number, because the mean of its divisors is an integer number (10006048).

Almost surely, 269989941 is an apocalyptic number.

It is an amenable number.

69989941 is a deficient number, since it is larger than the sum of its proper divisors (10058443).

69989941 is a wasteful number, since it uses less digits than its factorization.

69989941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7491.

The product of its digits is 1259712, while the sum is 55.

The square root of 69989941 is about 8365.9991035142. Note that the first 3 decimals coincide. The cubic root of 69989941 is about 412.1087880786.

The spelling of 69989941 in words is "sixty-nine million, nine hundred eighty-nine thousand, nine hundred forty-one".

Divisors: 1 7 1741 5743 12187 40201 9998563 69989941