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69001689 = 323000563
BaseRepresentation
bin1000001110011…
…10000111011001
311210211122112010
410013032013121
5120131023224
610502540133
71465335051
oct407160731
9153748463
1069001689
1135a49a99
121b137649
13113ac303
149242561
1560cee29
hex41ce1d9

69001689 has 4 divisors (see below), whose sum is σ = 92002256. Its totient is φ = 46001124.

The previous prime is 69001661. The next prime is 69001693. The reversal of 69001689 is 98610096.

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 de Polignac number, because none of the positive numbers 2k-69001689 is a prime.

It is a super-2 number, since 2×690016892 = 9522466169705442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69001609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11500279 + ... + 11500284.

It is an arithmetic number, because the mean of its divisors is an integer number (23000564).

Almost surely, 269001689 is an apocalyptic number.

It is an amenable number.

69001689 is a deficient number, since it is larger than the sum of its proper divisors (23000567).

69001689 is a wasteful number, since it uses less digits than its factorization.

69001689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23000566.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 69001689 is about 8306.7255281489. The cubic root of 69001689 is about 410.1599395830.

The spelling of 69001689 in words is "sixty-nine million, one thousand, six hundred eighty-nine".

Divisors: 1 3 23000563 69001689