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308398080 = 2113510039
BaseRepresentation
bin10010011000011…
…100100000000000
3210111022020122010
4102120130200000
51112422214310
650334012520
710433224524
oct2230344000
9714266563
10308398080
111490a0051
1287347140
134bb7b493
142cd5bd84
151c11c320
hex1261c800

308398080 has 96 divisors (see below), whose sum is σ = 986731200. Its totient is φ = 82231296.

The previous prime is 308398039. The next prime is 308398091. The reversal of 308398080 is 80893803.

It is a happy number.

308398080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25701 + ... + 35739.

It is an arithmetic number, because the mean of its divisors is an integer number (10278450).

Almost surely, 2308398080 is an apocalyptic number.

308398080 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 308398080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493365600).

308398080 is an abundant number, since it is smaller than the sum of its proper divisors (678333120).

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

308398080 is a wasteful number, since it uses less digits than its factorization.

308398080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10069 (or 10049 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 308398080 is about 17561.2664691360. The cubic root of 308398080 is about 675.6221643566.

The spelling of 308398080 in words is "three hundred eight million, three hundred ninety-eight thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1024 1280 1536 1920 2048 2560 3072 3840 5120 6144 7680 10039 10240 15360 20078 30117 30720 40156 50195 60234 80312 100390 120468 150585 160624 200780 240936 301170 321248 401560 481872 602340 642496 803120 963744 1204680 1284992 1606240 1927488 2409360 2569984 3212480 3854976 4818720 5139968 6424960 7709952 9637440 10279936 12849920 15419904 19274880 20559872 25699840 30839808 38549760 51399680 61679616 77099520 102799360 154199040 308398080