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680134148 = 223717092689
BaseRepresentation
bin101000100010100…
…000011000000100
31202101210101122122
4220202200120010
52343103243043
6151253345112
722566021251
oct5042403004
91671711578
10680134148
11319a10941
1216b938198
13aaba5055
1466486428
153ea9b368
hex288a0604

680134148 has 24 divisors (see below), whose sum is σ = 1223573400. Its totient is φ = 330559488.

The previous prime is 680134097. The next prime is 680134151. The reversal of 680134148 is 841431086.

It can be written as a sum of positive squares in 4 ways, for example, as 16144324 + 663989824 = 4018^2 + 25768^2 .

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, 251588 + ... + 254276.

It is an arithmetic number, because the mean of its divisors is an integer number (50982225).

Almost surely, 2680134148 is an apocalyptic number.

It is an amenable number.

680134148 is a deficient number, since it is larger than the sum of its proper divisors (543439252).

680134148 is a wasteful number, since it uses less digits than its factorization.

680134148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4439 (or 4437 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 680134148 is about 26079.3816644490. The cubic root of 680134148 is about 879.4237566988.

The spelling of 680134148 in words is "six hundred eighty million, one hundred thirty-four thousand, one hundred forty-eight".

Divisors: 1 2 4 37 74 148 1709 2689 3418 5378 6836 10756 63233 99493 126466 198986 252932 397972 4595501 9191002 18382004 170033537 340067074 680134148