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78868907000 = 2353136066839
BaseRepresentation
bin100100101110011110…
…1000000001111111000
321112120111202121002122
41021130331000033320
52243010420011000
6100122030220412
75461305435242
oct1113475001770
9245514677078
1078868907000
11304a2495184
1213351054708
13758b9b8810
143b62865092
1520b9045085
hex125cf403f8

78868907000 has 64 divisors (see below), whose sum is σ = 198749678400. Its totient is φ = 29120822400.

The previous prime is 78868906969. The next prime is 78868907057. The reversal of 78868907000 is 70986887.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3020420 + ... + 3046419.

It is an arithmetic number, because the mean of its divisors is an integer number (3105463725).

Almost surely, 278868907000 is an apocalyptic number.

It is an amenable number.

78868907000 is an abundant number, since it is smaller than the sum of its proper divisors (119880771400).

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

78868907000 is a wasteful number, since it uses less digits than its factorization.

78868907000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6066873 (or 6066859 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 78868907000 in words is "seventy-eight billion, eight hundred sixty-eight million, nine hundred seven thousand".

Divisors: 1 2 4 5 8 10 13 20 25 26 40 50 52 65 100 104 125 130 200 250 260 325 500 520 650 1000 1300 1625 2600 3250 6500 13000 6066839 12133678 24267356 30334195 48534712 60668390 78868907 121336780 151670975 157737814 242673560 303341950 315475628 394344535 606683900 630951256 758354875 788689070 1213367800 1516709750 1577378140 1971722675 3033419500 3154756280 3943445350 6066839000 7886890700 9858613375 15773781400 19717226750 39434453500 78868907000