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69344869 = 116304079
BaseRepresentation
bin1000010001000…
…01111001100101
311211111002021111
410020201321211
5120223013434
610514145021
71501264426
oct410417145
9154432244
1069344869
1136163910
121b282171
131149c589
1492d164d
15614b964
hex4221e65

69344869 has 4 divisors (see below), whose sum is σ = 75648960. Its totient is φ = 63040780.

The previous prime is 69344833. The next prime is 69344897. The reversal of 69344869 is 96844396.

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 not a de Polignac number, because 69344869 - 215 = 69312101 is a prime.

It is a super-2 number, since 2×693448692 = 9617421713254322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69344369) 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 3 ways as a sum of consecutive naturals, for example, 3152029 + ... + 3152050.

It is an arithmetic number, because the mean of its divisors is an integer number (18912240).

Almost surely, 269344869 is an apocalyptic number.

It is an amenable number.

69344869 is a deficient number, since it is larger than the sum of its proper divisors (6304091).

69344869 is a wasteful number, since it uses less digits than its factorization.

69344869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6304090.

The product of its digits is 1119744, while the sum is 49.

The square root of 69344869 is about 8327.3566634317. The cubic root of 69344869 is about 410.8387924160.

The spelling of 69344869 in words is "sixty-nine million, three hundred forty-four thousand, eight hundred sixty-nine".

Divisors: 1 11 6304079 69344869