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206252928 = 2732725577
BaseRepresentation
bin11000100101100…
…10101110000000
3112101002201211100
430102302232000
5410300043203
632244414400
75053056330
oct1422625600
9471081740
10206252928
11a6473972
12590a7400
133396646b
141d56d0c0
1513191ea3
hexc4b2b80

206252928 has 96 divisors (see below), whose sum is σ = 678328560. Its totient is φ = 58927104.

The previous prime is 206252927. The next prime is 206252987. The reversal of 206252928 is 829252602.

206252928 is a `hidden beast` number, since 2 + 0 + 625 + 2 + 9 + 28 = 666.

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

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

It is a junction number, because it is equal to n+sod(n) for n = 206252892 and 206252901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206252927) 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 11 ways as a sum of consecutive naturals, for example, 4725 + ... + 20852.

Almost surely, 2206252928 is an apocalyptic number.

206252928 is a gapful number since it is divisible by the number (28) 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 206252928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339164280).

206252928 is an abundant number, since it is smaller than the sum of its proper divisors (472075632).

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

206252928 is a wasteful number, since it uses less digits than its factorization.

206252928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25604 (or 25589 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 206252928 is about 14361.5085558586. The cubic root of 206252928 is about 590.8356711133.

The spelling of 206252928 in words is "two hundred six million, two hundred fifty-two thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 128 144 168 192 224 252 288 336 384 448 504 576 672 896 1008 1152 1344 2016 2688 4032 8064 25577 51154 76731 102308 153462 179039 204616 230193 306924 358078 409232 460386 537117 613848 716156 818464 920772 1074234 1227696 1432312 1611351 1636928 1841544 2148468 2455392 2864624 3222702 3273856 3683088 4296936 4910784 5729248 6445404 7366176 8593872 9821568 11458496 12890808 14732352 17187744 22916992 25781616 29464704 34375488 51563232 68750976 103126464 206252928