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308087380512 = 2532327072
BaseRepresentation
bin1000111101110110111…
…00000101101000100000
31002110020010202112011200
410132323130011220200
520021430332134022
6353311113441200
731154456345232
oct4367334055040
91073203675150
10308087380512
11109728326a4a
124b861a10200
132308b4b7572
1410ca9274252
1580326b9bac
hex47bb705a20

308087380512 has 54 divisors (see below), whose sum is σ = 876150276183. Its totient is φ = 102692653632.

The previous prime is 308087380501. The next prime is 308087380537. The reversal of 308087380512 is 215083780803.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 154043690256 + 154043690256 = 392484^2 + 392484^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=392484.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9403263 + ... + 9435969.

Almost surely, 2308087380512 is an apocalyptic number.

308087380512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

308087380512 is an abundant number, since it is smaller than the sum of its proper divisors (568062895671).

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

308087380512 is an frugal number, since it uses more digits than its factorization.

308087380512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65430 (or 32712 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 308087380512 in words is "three hundred eight billion, eighty-seven million, three hundred eighty thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 32707 65414 98121 130828 196242 261656 294363 392484 523312 588726 784968 1046624 1177452 1569936 2354904 3139872 4709808 9419616 1069747849 2139495698 3209243547 4278991396 6418487094 8557982792 9627730641 12836974188 17115965584 19255461282 25673948376 34231931168 38510922564 51347896752 77021845128 102695793504 154043690256 308087380512