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69390048 = 253713347
BaseRepresentation
bin1000010001011…
…00111011100000
311211120101020210
410020230323200
5120230440143
610515134120
71501543230
oct410547340
9154511223
1069390048
1136194852
121b2a4340
13114b7000
149303cc0
15615a033
hex422cee0

69390048 has 192 divisors, whose sum is σ = 230307840. Its totient is φ = 17911296.

The previous prime is 69390043. The next prime is 69390053. The reversal of 69390048 is 84009396.

It is an interprime number because it is at equal distance from previous prime (69390043) and next prime (69390053).

It is a super-2 number, since 2×693900482 = 9629957522884608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 69389988 and 69390015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69390043) 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 31 ways as a sum of consecutive naturals, for example, 1476361 + ... + 1476407.

It is an arithmetic number, because the mean of its divisors is an integer number (1199520).

Almost surely, 269390048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69390048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115153920).

69390048 is an abundant number, since it is smaller than the sum of its proper divisors (160917792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69390048 is a wasteful number, since it uses less digits than its factorization.

69390048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 69390048 is about 8330.0689072780. The cubic root of 69390048 is about 410.9279951528.

The spelling of 69390048 in words is "sixty-nine million, three hundred ninety thousand, forty-eight".