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206140480 = 2657137079
BaseRepresentation
bin11000100100101…
…11010001000000
3112100220000120121
430102113101000
5410232443410
632242150024
75052110440
oct1422272100
9470800517
10206140480
11a63a7437
1259052314
1333927220
141d540120
151316d9da
hexc497440

206140480 has 112 divisors (see below), whose sum is σ = 604235520. Its totient is φ = 65230848.

The previous prime is 206140463. The next prime is 206140523. The reversal of 206140480 is 84041602.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25581 + ... + 32659.

It is an arithmetic number, because the mean of its divisors is an integer number (5394960).

Almost surely, 2206140480 is an apocalyptic number.

206140480 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 206140480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302117760).

206140480 is an abundant number, since it is smaller than the sum of its proper divisors (398095040).

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

206140480 is a wasteful number, since it uses less digits than its factorization.

206140480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7116 (or 7106 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 206140480 is about 14357.5931130535. The cubic root of 206140480 is about 590.7282781051.

The spelling of 206140480 in words is "two hundred six million, one hundred forty thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 52 56 64 65 70 80 91 104 112 130 140 160 182 208 224 260 280 320 364 416 448 455 520 560 728 832 910 1040 1120 1456 1820 2080 2240 2912 3640 4160 5824 7079 7280 14158 14560 28316 29120 35395 49553 56632 70790 92027 99106 113264 141580 184054 198212 226528 247765 283160 368108 396424 453056 460135 495530 566320 644189 736216 792848 920270 991060 1132640 1288378 1472432 1585696 1840540 1982120 2265280 2576756 2944864 3171392 3220945 3681080 3964240 5153512 5889728 6441890 7362160 7928480 10307024 12883780 14724320 15856960 20614048 25767560 29448640 41228096 51535120 103070240 206140480