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206982960 = 24351922389
BaseRepresentation
bin11000101011001…
…00111100110000
3112102110211020120
430111210330300
5410441423320
632312210240
75062216602
oct1425447460
9472424216
10206982960
11a69223a8
1259399980
1333b60832
141d6bd172
1513288440
hexc564f30

206982960 has 120 divisors (see below), whose sum is σ = 677478960. Its totient is φ = 52268544.

The previous prime is 206982953. The next prime is 206982977. The reversal of 206982960 is 69289602.

It is a tau number, because it is divible by the number of its divisors (120).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85446 + ... + 87834.

It is an arithmetic number, because the mean of its divisors is an integer number (5645658).

Almost surely, 2206982960 is an apocalyptic number.

206982960 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 206982960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338739480).

206982960 is an abundant number, since it is smaller than the sum of its proper divisors (470496000).

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

206982960 is a wasteful number, since it uses less digits than its factorization.

206982960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443 (or 2418 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 206982960 is about 14386.9023768148. The cubic root of 206982960 is about 591.5319376715.

The spelling of 206982960 in words is "two hundred six million, nine hundred eighty-two thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 38 40 48 57 60 76 80 95 114 120 152 190 228 240 285 304 361 380 456 570 722 760 912 1083 1140 1444 1520 1805 2166 2280 2389 2888 3610 4332 4560 4778 5415 5776 7167 7220 8664 9556 10830 11945 14334 14440 17328 19112 21660 23890 28668 28880 35835 38224 43320 45391 47780 57336 71670 86640 90782 95560 114672 136173 143340 181564 191120 226955 272346 286680 363128 453910 544692 573360 680865 726256 862429 907820 1089384 1361730 1724858 1815640 2178768 2587287 2723460 3449716 3631280 4312145 5174574 5446920 6899432 8624290 10349148 10893840 12936435 13798864 17248580 20698296 25872870 34497160 41396592 51745740 68994320 103491480 206982960