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200389770 = 232571916741
BaseRepresentation
bin10111111000110…
…11010010001010
3111222001212002100
423330123102022
5402244433040
631515014230
74652166510
oct1374332212
9458055070
10200389770
11a3129889
125713a376
1332692839
141c8844b0
15128d4b30
hexbf1b48a

200389770 has 96 divisors (see below), whose sum is σ = 626820480. Its totient is φ = 43390080.

The previous prime is 200389769. The next prime is 200389771. The reversal of 200389770 is 77983002.

200389770 is a `hidden beast` number, since 200 + 389 + 7 + 70 = 666.

200389770 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (200389769) and next prime (200389771).

It is not an unprimeable number, because it can be changed into a prime (200389771) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3600 + ... + 20340.

It is an arithmetic number, because the mean of its divisors is an integer number (6529380).

Almost surely, 2200389770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200389770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313410240).

200389770 is an abundant number, since it is smaller than the sum of its proper divisors (426430710).

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

200389770 is a wasteful number, since it uses less digits than its factorization.

200389770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16780 (or 16777 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 200389770 is about 14155.9093667627. The cubic root of 200389770 is about 585.1831992525.

The spelling of 200389770 in words is "two hundred million, three hundred eighty-nine thousand, seven hundred seventy".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 19 21 30 35 38 42 45 57 63 70 90 95 105 114 126 133 171 190 210 266 285 315 342 399 570 630 665 798 855 1197 1330 1710 1995 2394 3990 5985 11970 16741 33482 50223 83705 100446 117187 150669 167410 234374 251115 301338 318079 351561 502230 585935 636158 703122 753345 954237 1054683 1171870 1506690 1590395 1757805 1908474 2109366 2226553 2862711 3180790 3515610 4453106 4771185 5273415 5725422 6679659 9542370 10546830 11132765 13359318 14313555 20038977 22265530 28627110 33398295 40077954 66796590 100194885 200389770