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30336880 = 2457271109
BaseRepresentation
bin111001110111…
…0011101110000
32010002021101011
41303232131300
530231240010
63002120304
7515600500
oct163563560
963067334
1030336880
1116140602
12a1b0094
136392422
144059a00
1529e3a8a
hex1cee770

30336880 has 120 divisors (see below), whose sum is σ = 83967840. Its totient is φ = 10160640.

The previous prime is 30336877. The next prime is 30336893. The reversal of 30336880 is 8863303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 278266 + ... + 278374.

It is an arithmetic number, because the mean of its divisors is an integer number (699732).

Almost surely, 230336880 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 30336880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41983920).

30336880 is an abundant number, since it is smaller than the sum of its proper divisors (53630960).

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

30336880 is a wasteful number, since it uses less digits than its factorization.

30336880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 30336880 is about 5507.8925189223. The cubic root of 30336880 is about 311.8819956985.

The spelling of 30336880 in words is "thirty million, three hundred thirty-six thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 49 56 70 71 80 98 109 112 140 142 196 218 245 280 284 355 392 436 490 497 545 560 568 710 763 784 872 980 994 1090 1136 1420 1526 1744 1960 1988 2180 2485 2840 3052 3479 3815 3920 3976 4360 4970 5341 5680 6104 6958 7630 7739 7952 8720 9940 10682 12208 13916 15260 15478 17395 19880 21364 26705 27832 30520 30956 34790 38695 39760 42728 53410 54173 55664 61040 61912 69580 77390 85456 106820 108346 123824 139160 154780 213640 216692 270865 278320 309560 379211 427280 433384 541730 619120 758422 866768 1083460 1516844 1896055 2166920 3033688 3792110 4333840 6067376 7584220 15168440 30336880