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30110512120 = 23513711375953
BaseRepresentation
bin11100000010101110…
…011111001111111000
32212201110020111111121
4130002232133033320
5443131242341440
621455500435024
72114111062423
oct340256371770
985643214447
1030110512120
1111851665467
125a03b48a74
132abb2495a0
141658db49ba
15bb36a834a
hex702b9f3f8

30110512120 has 128 divisors (see below), whose sum is σ = 74540269440. Its totient is φ = 10879303680.

The previous prime is 30110512097. The next prime is 30110512151. The reversal of 30110512120 is 2121501103.

It is a junction number, because it is equal to n+sod(n) for n = 30110512094 and 30110512103.

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, 5055064 + ... + 5061016.

It is an arithmetic number, because the mean of its divisors is an integer number (582345855).

Almost surely, 230110512120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30110512120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37270134720).

30110512120 is an abundant number, since it is smaller than the sum of its proper divisors (44429757320).

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

30110512120 is a wasteful number, since it uses less digits than its factorization.

30110512120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6185 (or 6181 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The spelling of 30110512120 in words is "thirty billion, one hundred ten million, five hundred twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 71 104 130 137 142 260 274 284 355 520 548 568 685 710 923 1096 1370 1420 1781 1846 2740 2840 3562 3692 4615 5480 5953 7124 7384 8905 9230 9727 11906 14248 17810 18460 19454 23812 29765 35620 36920 38908 47624 48635 59530 71240 77389 77816 97270 119060 126451 154778 194540 238120 252902 309556 386945 389080 422663 505804 619112 632255 773890 815561 845326 1011608 1264510 1547780 1631122 1690652 2113315 2529020 3095560 3262244 3381304 4077805 4226630 5058040 5494619 6524488 8155610 8453260 10602293 10989238 16311220 16906520 21204586 21978476 27473095 32622440 42409172 43956952 53011465 54946190 57904831 84818344 106022930 109892380 115809662 212045860 219784760 231619324 289524155 424091720 463238648 579048310 752762803 1158096620 1505525606 2316193240 3011051212 3763814015 6022102424 7527628030 15055256060 30110512120