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69378768 = 2434174767
BaseRepresentation
bin1000010001010…
…10001011010000
311211112210210000
410020222023100
5120230110033
610515010000
71501465314
oct410521320
9154483700
1069378768
1136187328
121b299900
13114b1b34
1492ddb44
156156a13
hex422a2d0

69378768 has 200 divisors, whose sum is σ = 220378752. Its totient is φ = 20984832.

The previous prime is 69378767. The next prime is 69378769. The reversal of 69378768 is 86787396.

It is an interprime number because it is at equal distance from previous prime (69378767) and next prime (69378769).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69378761) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1035471 + ... + 1035537.

Almost surely, 269378768 is an apocalyptic number.

69378768 is a gapful number since it is divisible by the number (68) 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 69378768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110189376).

69378768 is an abundant number, since it is smaller than the sum of its proper divisors (150999984).

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

69378768 is a wasteful number, since it uses less digits than its factorization.

69378768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 136 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 69378768 is about 8329.3918145324. The cubic root of 69378768 is about 410.9057272191.

The spelling of 69378768 in words is "sixty-nine million, three hundred seventy-eight thousand, seven hundred sixty-eight".