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206047872 = 2732383467
BaseRepresentation
bin11000100100000…
…00101010000000
3112100201022112200
430102000222000
5410222012442
632240153200
75051243442
oct1422005200
9470638480
10206047872
11a63438a8
1259008800
13338c4024
141d518492
151315134c
hexc480a80

206047872 has 96 divisors (see below), whose sum is σ = 595745280. Its totient is φ = 68356608.

The previous prime is 206047861. The next prime is 206047903. The reversal of 206047872 is 278740602.

206047872 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440983 + ... + 441449.

It is an arithmetic number, because the mean of its divisors is an integer number (6205680).

Almost surely, 2206047872 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 206047872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297872640).

206047872 is an abundant number, since it is smaller than the sum of its proper divisors (389697408).

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

206047872 is a wasteful number, since it uses less digits than its factorization.

206047872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 206047872 is about 14354.3676976731. The cubic root of 206047872 is about 590.6398038785.

The spelling of 206047872 in words is "two hundred six million, forty-seven thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 288 383 384 467 576 766 934 1149 1152 1401 1532 1868 2298 2802 3064 3447 3736 4203 4596 5604 6128 6894 7472 8406 9192 11208 12256 13788 14944 16812 18384 22416 24512 27576 29888 33624 36768 44832 49024 55152 59776 67248 73536 89664 110304 134496 147072 178861 179328 220608 268992 357722 441216 536583 537984 715444 1073166 1430888 1609749 2146332 2861776 3219498 4292664 5723552 6438996 8585328 11447104 12877992 17170656 22894208 25755984 34341312 51511968 68682624 103023936 206047872