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308000880 = 243451129149
BaseRepresentation
bin10010010110111…
…011100001110000
3210110120001210000
4102112323201300
51112322012010
650321310000
710426651515
oct2226734160
9713501700
10308000880
11148949690
1287195300
134ba6c755
142cc9730c
151c08e7c0
hex125bb870

308000880 has 400 divisors, whose sum is σ = 1215324000. Its totient is φ = 71608320.

The previous prime is 308000837. The next prime is 308000893. The reversal of 308000880 is 88000803.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2067046 + ... + 2067194.

It is an arithmetic number, because the mean of its divisors is an integer number (3038310).

Almost surely, 2308000880 is an apocalyptic number.

308000880 is a gapful number since it is divisible by the number (30) 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 308000880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607662000).

308000880 is an abundant number, since it is smaller than the sum of its proper divisors (907323120).

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

308000880 is a wasteful number, since it uses less digits than its factorization.

308000880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 308000880 is about 17549.9538460932. The cubic root of 308000880 is about 675.3319848415.

The spelling of 308000880 in words is "three hundred eight million, eight hundred eighty", and thus it is an aban number.