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69494975 = 5211252709
BaseRepresentation
bin1000010010001…
…10100010111111
311211202201011222
410021012202333
5120242314400
610521303555
71502461154
oct411064277
9154681158
1069494975
1136256670
121b334bbb
13115229b4
14933022b
15617b185
hex42468bf

69494975 has 12 divisors (see below), whose sum is σ = 94008120. Its totient is φ = 50541600.

The previous prime is 69494947. The next prime is 69494977. The reversal of 69494975 is 57949496.

It is a de Polignac number, because none of the positive numbers 2k-69494975 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69494977) 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 11 ways as a sum of consecutive naturals, for example, 126080 + ... + 126629.

It is an arithmetic number, because the mean of its divisors is an integer number (7834010).

Almost surely, 269494975 is an apocalyptic number.

69494975 is a deficient number, since it is larger than the sum of its proper divisors (24513145).

69494975 is a wasteful number, since it uses less digits than its factorization.

69494975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252730 (or 252725 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 53.

The square root of 69494975 is about 8336.3646153464. The cubic root of 69494975 is about 411.1350168038.

The spelling of 69494975 in words is "sixty-nine million, four hundred ninety-four thousand, nine hundred seventy-five".

Divisors: 1 5 11 25 55 275 252709 1263545 2779799 6317725 13898995 69494975