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69004427 = 2913811723
BaseRepresentation
bin1000001110011…
…10110010001011
311210211210021112
410013032302023
5120131120202
610503000535
71465346042
oct407166213
9153753245
1069004427
1135a51058
121b13914b
13113b062b
149243559
1560d0b52
hex41cec8b

69004427 has 8 divisors (see below), whose sum is σ = 71477040. Its totient is φ = 66538080.

The previous prime is 69004421. The next prime is 69004477. The reversal of 69004427 is 72440096.

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 69004427 - 26 = 69004363 is a prime.

It is a super-2 number, since 2×690044272 = 9523221891196658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69004393 and 69004402.

It is not an unprimeable number, because it can be changed into a prime (69004421) 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 7 ways as a sum of consecutive naturals, for example, 39188 + ... + 40910.

It is an arithmetic number, because the mean of its divisors is an integer number (8934630).

Almost surely, 269004427 is an apocalyptic number.

69004427 is a deficient number, since it is larger than the sum of its proper divisors (2472613).

69004427 is a wasteful number, since it uses less digits than its factorization.

69004427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 69004427 is about 8306.8903327298. The cubic root of 69004427 is about 410.1653645857.

The spelling of 69004427 in words is "sixty-nine million, four thousand, four hundred twenty-seven".

Divisors: 1 29 1381 1723 40049 49967 2379463 69004427