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69125040 = 243251931163
BaseRepresentation
bin1000001111011…
…00001110110000
311211001220201200
410013230032300
5120144000130
610505331200
71466360505
oct407541660
9154056650
1069125040
1136023736
121b196b00
13114234ba
1492754ac
156106760
hex41ec3b0

69125040 has 240 divisors, whose sum is σ = 253793280. Its totient is φ = 16796160.

The previous prime is 69125029. The next prime is 69125081. The reversal of 69125040 is 4052196.

It is a tau number, because it is divible by the number of its divisors (240).

It is a junction number, because it is equal to n+sod(n) for n = 69124995 and 69125013.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 423999 + ... + 424161.

It is an arithmetic number, because the mean of its divisors is an integer number (1057472).

Almost surely, 269125040 is an apocalyptic number.

69125040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69125040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126896640).

69125040 is an abundant number, since it is smaller than the sum of its proper divisors (184668240).

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

69125040 is a wasteful number, since it uses less digits than its factorization.

69125040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 69125040 is about 8314.1469796967. The cubic root of 69125040 is about 410.4042018197.

The spelling of 69125040 in words is "sixty-nine million, one hundred twenty-five thousand, forty".