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29968080 = 2435236189
BaseRepresentation
bin111001001010…
…0011011010000
32002101112110220
41302110123100
530132434310
62550153040
7512503332
oct162243320
962345426
1029968080
1115a0950a
12a052780
1362935bc
143da1452
15296e670
hex1c946d0

29968080 has 160 divisors (see below), whose sum is σ = 99636480. Its totient is φ = 7434240.

The previous prime is 29968079. The next prime is 29968087. The reversal of 29968080 is 8086992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29968087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 336676 + ... + 336764.

It is an arithmetic number, because the mean of its divisors is an integer number (622728).

Almost surely, 229968080 is an apocalyptic number.

29968080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29968080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49818240).

29968080 is an abundant number, since it is smaller than the sum of its proper divisors (69668400).

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

29968080 is a wasteful number, since it uses less digits than its factorization.

29968080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 29968080 is about 5474.3109155400. The cubic root of 29968080 is about 310.6130083073.

The spelling of 29968080 in words is "twenty-nine million, nine hundred sixty-eight thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 23 24 30 40 46 48 60 61 69 80 89 92 115 120 122 138 178 183 184 230 240 244 267 276 305 345 356 366 368 445 460 488 534 552 610 690 712 732 890 915 920 976 1068 1104 1220 1335 1380 1403 1424 1464 1780 1830 1840 2047 2136 2440 2670 2760 2806 2928 3560 3660 4094 4209 4272 4880 5340 5429 5520 5612 6141 7015 7120 7320 8188 8418 10235 10680 10858 11224 12282 14030 14640 16287 16376 16836 20470 21045 21360 21716 22448 24564 27145 28060 30705 32574 32752 33672 40940 42090 43432 49128 54290 56120 61410 65148 67344 81435 81880 84180 86864 98256 108580 112240 122820 124867 130296 162870 163760 168360 217160 245640 249734 260592 325740 336720 374601 434320 491280 499468 624335 651480 749202 998936 1248670 1302960 1498404 1873005 1997872 2497340 2996808 3746010 4994680 5993616 7492020 9989360 14984040 29968080