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69349389 = 323116463
BaseRepresentation
bin1000010001000…
…11000000001101
311211111022110220
410020203000031
5120223140024
610514221553
71501313544
oct410430015
9154438426
1069349389
113616724a
121b2848b9
13114a1655
1492d315b
15614ce79
hex422300d

69349389 has 4 divisors (see below), whose sum is σ = 92465856. Its totient is φ = 46232924.

The previous prime is 69349381. The next prime is 69349403. The reversal of 69349389 is 98394396.

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 cyclic number.

It is not a de Polignac number, because 69349389 - 23 = 69349381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69349381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11558229 + ... + 11558234.

It is an arithmetic number, because the mean of its divisors is an integer number (23116464).

Almost surely, 269349389 is an apocalyptic number.

It is an amenable number.

69349389 is a deficient number, since it is larger than the sum of its proper divisors (23116467).

69349389 is a wasteful number, since it uses less digits than its factorization.

69349389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23116466.

The product of its digits is 1259712, while the sum is 51.

The square root of 69349389 is about 8327.6280536537. The cubic root of 69349389 is about 410.8477185799.

The spelling of 69349389 in words is "sixty-nine million, three hundred forty-nine thousand, three hundred eighty-nine".

Divisors: 1 3 23116463 69349389