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679903488 = 283211139193
BaseRepresentation
bin101000100001101…
…000000100000000
31202101100200020200
4220201220010000
52343023402423
6151244405200
722564040625
oct5041500400
91671320220
10679903488
11319873610
1216b846800
13aab24074
146642634c
153ea52d43
hex28868100

679903488 has 216 divisors, whose sum is σ = 2165086560. Its totient is φ = 203489280.

The previous prime is 679903447. The next prime is 679903507. The reversal of 679903488 is 884309976.

679903488 is a `hidden beast` number, since 6 + 79 + 90 + 3 + 488 = 666.

It is a super-2 number, since 2×6799034882 = 924537505989132288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3522720 + ... + 3522912.

Almost surely, 2679903488 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 679903488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1082543280).

679903488 is an abundant number, since it is smaller than the sum of its proper divisors (1485183072).

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

679903488 is a wasteful number, since it uses less digits than its factorization.

679903488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 679903488 is about 26074.9590220196. The cubic root of 679903488 is about 879.3243298333.

The spelling of 679903488 in words is "six hundred seventy-nine million, nine hundred three thousand, four hundred eighty-eight".