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69968448 = 263511409
BaseRepresentation
bin1000010101110…
…10001001000000
311212122202200000
410022322021000
5120402442243
610535400000
71506502434
oct412721100
9155582600
1069968448
113654a370
121b523000
131165a364
1494149c4
1562215d3
hex42ba240

69968448 has 168 divisors, whose sum is σ = 227441760. Its totient is φ = 21150720.

The previous prime is 69968407. The next prime is 69968449. The reversal of 69968448 is 84486996.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 69968394 and 69968403.

It is not an unprimeable number, because it can be changed into a prime (69968449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170868 + ... + 171276.

It is an arithmetic number, because the mean of its divisors is an integer number (1353820).

Almost surely, 269968448 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 69968448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113720880).

69968448 is an abundant number, since it is smaller than the sum of its proper divisors (157473312).

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

69968448 is a wasteful number, since it uses less digits than its factorization.

69968448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 425 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 69968448 is about 8364.7144601594. The cubic root of 69968448 is about 412.0665993446.

The spelling of 69968448 in words is "sixty-nine million, nine hundred sixty-eight thousand, four hundred forty-eight".