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69047393 = 532295689
BaseRepresentation
bin1000001110110…
…01010001100001
311210220222012212
410013121101201
5120134004033
610503531505
71465615232
oct407312141
9153828185
1069047393
1135a80368
121b159b95
13113c705c
149255089
1560dd748
hex41d9461

69047393 has 8 divisors (see below), whose sum is σ = 70669800. Its totient is φ = 67436928.

The previous prime is 69047369. The next prime is 69047401. The reversal of 69047393 is 39374096.

It can be written as a sum of positive squares in 4 ways, for example, as 52171729 + 16875664 = 7223^2 + 4108^2 .

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 69047393 - 220 = 67998817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69047393.

It is not an unprimeable number, because it can be changed into a prime (69047333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9293 + ... + 14981.

It is an arithmetic number, because the mean of its divisors is an integer number (8833725).

Almost surely, 269047393 is an apocalyptic number.

It is an amenable number.

69047393 is a deficient number, since it is larger than the sum of its proper divisors (1622407).

69047393 is a wasteful number, since it uses less digits than its factorization.

69047393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5971.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 69047393 is about 8309.4760966020. The cubic root of 69047393 is about 410.2504775239.

The spelling of 69047393 in words is "sixty-nine million, forty-seven thousand, three hundred ninety-three".

Divisors: 1 53 229 5689 12137 301517 1302781 69047393