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30879927080 = 23519311310693
BaseRepresentation
bin11100110000100101…
…100100101100101000
32221201002000211101222
4130300211210230220
51001220230131310
622104104001212
72142143022632
oct346045445450
987632024358
1030879927080
1112106a062a2
125b99760208
132bb1781102
1416cd25ba52
15c0aedd055
hex730964b28

30879927080 has 64 divisors (see below), whose sum is σ = 75495974400. Its totient is φ = 11324378880.

The previous prime is 30879927079. The next prime is 30879927119. The reversal of 30879927080 is 8072997803.

It is a super-2 number, since 2×308799270802 (a number of 22 digits) contains 22 as substring.

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, 631787 + ... + 678906.

It is an arithmetic number, because the mean of its divisors is an integer number (1179624600).

Almost surely, 230879927080 is an apocalyptic number.

It is an amenable number.

30879927080 is an abundant number, since it is smaller than the sum of its proper divisors (44616047320).

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

30879927080 is a wasteful number, since it uses less digits than its factorization.

30879927080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310754 (or 1310750 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 30879927080 in words is "thirty billion, eight hundred seventy-nine million, nine hundred twenty-seven thousand, eighty".

Divisors: 1 2 4 5 8 10 19 20 31 38 40 62 76 95 124 152 155 190 248 310 380 589 620 760 1178 1240 2356 2945 4712 5890 11780 23560 1310693 2621386 5242772 6553465 10485544 13106930 24903167 26213860 40631483 49806334 52427720 81262966 99612668 124515835 162525932 199225336 203157415 249031670 325051864 406314830 498063340 771998177 812629660 996126680 1543996354 1625259320 3087992708 3859990885 6175985416 7719981770 15439963540 30879927080