Search a number
-
+
20282070 = 235676069
BaseRepresentation
bin100110101011…
…1101011010110
31102011102202210
41031113223112
520143011240
62002414250
7334252254
oct115275326
942142683
1020282070
11104a3246
126961386
134281933
14299d5d4
151ba9780
hex1357ad6

20282070 has 16 divisors (see below), whose sum is σ = 48677040. Its totient is φ = 5408544.

The previous prime is 20282069. The next prime is 20282081. The reversal of 20282070 is 7028202.

It is a super-2 number, since 2×202820702 = 822724726969800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338005 + ... + 338064.

It is an arithmetic number, because the mean of its divisors is an integer number (3042315).

Almost surely, 220282070 is an apocalyptic number.

20282070 is an abundant number, since it is smaller than the sum of its proper divisors (28394970).

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

20282070 is a wasteful number, since it uses less digits than its factorization.

20282070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676079.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 20282070 is about 4503.5619236333. The cubic root of 20282070 is about 272.7119020630.

The spelling of 20282070 in words is "twenty million, two hundred eighty-two thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 676069 1352138 2028207 3380345 4056414 6760690 10141035 20282070