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768665160830 = 25747699733391
BaseRepresentation
bin10110010111110000000…
…00111000110001111110
32201111001121002222111202
423023320000320301332
5100043211240121310
61345041522015502
7106351145030540
oct13137000706176
92644047088452
10768665160830
11276a974982a6
12104b804a7592
135763c19bb18
14292bc92b690
1514edc3e53a5
hexb2f8038c7e

768665160830 has 64 divisors (see below), whose sum is σ = 1615176916992. Its totient is φ = 257890469760.

The previous prime is 768665160821. The next prime is 768665161001. The reversal of 768665160830 is 38061566867.

It is a happy number.

768665160830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×7686651608302 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23003435 + ... + 23036825.

It is an arithmetic number, because the mean of its divisors is an integer number (25237139328).

Almost surely, 2768665160830 is an apocalyptic number.

768665160830 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

768665160830 is an abundant number, since it is smaller than the sum of its proper divisors (846511756162).

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

768665160830 is a wasteful number, since it uses less digits than its factorization.

768665160830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40449.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 768665160830 in words is "seven hundred sixty-eight billion, six hundred sixty-five million, one hundred sixty thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 35 47 70 94 235 329 470 658 1645 3290 6997 13994 33391 34985 48979 66782 69970 97958 166955 233737 244895 328859 333910 467474 489790 657718 1168685 1569377 1644295 2302013 2337370 3138754 3288590 4604026 7846885 10985639 11510065 15693770 21971278 23020130 54928195 109856390 233636827 467273654 1168184135 1635457789 2336368270 3270915578 8177288945 10980930869 16354577890 21961861738 54904654345 76866516083 109809308690 153733032166 384332580415 768665160830