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20242125 = 325319947
BaseRepresentation
bin100110100110…
…1111011001101
31102002101222100
41031031323031
520140222000
62001505313
7334024641
oct115157315
942071870
1020242125
1110476232
126942239
1342696b7
14298cc21
151b9ca00
hex134decd

20242125 has 48 divisors (see below), whose sum is σ = 38450880. Its totient is φ = 10216800.

The previous prime is 20242111. The next prime is 20242127. The reversal of 20242125 is 52124202.

It is not a de Polignac number, because 20242125 - 24 = 20242109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20242098 and 20242107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20242127) 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, 20902 + ... + 21848.

It is an arithmetic number, because the mean of its divisors is an integer number (801060).

Almost surely, 220242125 is an apocalyptic number.

20242125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20242125 is a deficient number, since it is larger than the sum of its proper divisors (18208755).

20242125 is a wasteful number, since it uses less digits than its factorization.

20242125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987 (or 974 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 20242125 is about 4499.1249149140. The cubic root of 20242125 is about 272.5327514432.

Adding to 20242125 its reverse (52124202), we get a palindrome (72366327).

The spelling of 20242125 in words is "twenty million, two hundred forty-two thousand, one hundred twenty-five".

Divisors: 1 3 5 9 15 19 25 45 57 75 95 125 171 225 285 375 475 855 947 1125 1425 2375 2841 4275 4735 7125 8523 14205 17993 21375 23675 42615 53979 71025 89965 118375 161937 213075 269895 355125 449825 809685 1065375 1349475 2249125 4048425 6747375 20242125