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680268180048 = 24330746163693
BaseRepresentation
bin10011110011000110010…
…01001010101001010000
32102000220001121002100120
421321203021022221100
542121142123230143
61240302203550240
7100101452060442
oct11714311125120
92360801532316
10680268180048
11242555720286
12aba1052b380
134c1c24cb932
1424cd48ac492
1512a66b62383
hex9e6324aa50

680268180048 has 40 divisors (see below), whose sum is σ = 1763083801248. Its totient is φ = 226017436032.

The previous prime is 680268180017. The next prime is 680268180091. The reversal of 680268180048 is 840081862086.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23067111 + ... + 23096582.

Almost surely, 2680268180048 is an apocalyptic number.

It is an amenable number.

680268180048 is an abundant number, since it is smaller than the sum of its proper divisors (1082815621200).

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

680268180048 is a wasteful number, since it uses less digits than its factorization.

680268180048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46164011 (or 46164005 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 51.

The spelling of 680268180048 in words is "six hundred eighty billion, two hundred sixty-eight million, one hundred eighty thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 307 614 921 1228 1842 2456 3684 4912 7368 14736 46163693 92327386 138491079 184654772 276982158 369309544 553964316 738619088 1107928632 2215857264 14172253751 28344507502 42516761253 56689015004 85033522506 113378030008 170067045012 226756060016 340134090024 680268180048