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69298813 = 503137771
BaseRepresentation
bin1000010000101…
…10101001111101
311211101202002201
410020112221331
5120220030223
610513151501
71501013233
oct410265175
9154352081
1069298813
1136132251
121b25b591
131148461c
1492bc953
15613cead
hex4216a7d

69298813 has 4 divisors (see below), whose sum is σ = 69437088. Its totient is φ = 69160540.

The previous prime is 69298807. The next prime is 69298819. The reversal of 69298813 is 31889296.

It is the 3399-th star number.

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 an interprime number because it is at equal distance from previous prime (69298807) and next prime (69298819).

It is a cyclic number.

It is not a de Polignac number, because 69298813 - 25 = 69298781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69298819) 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 3 ways as a sum of consecutive naturals, for example, 68383 + ... + 69388.

It is an arithmetic number, because the mean of its divisors is an integer number (17359272).

Almost surely, 269298813 is an apocalyptic number.

It is an amenable number.

69298813 is a deficient number, since it is larger than the sum of its proper divisors (138275).

69298813 is a wasteful number, since it uses less digits than its factorization.

69298813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138274.

The product of its digits is 186624, while the sum is 46.

The square root of 69298813 is about 8324.5908608171. The cubic root of 69298813 is about 410.7478182160.

The spelling of 69298813 in words is "sixty-nine million, two hundred ninety-eight thousand, eight hundred thirteen".

Divisors: 1 503 137771 69298813