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10200018 = 232277489
BaseRepresentation
bin100110111010…
…001111010010
3201012012210110
4212322033102
510102400033
61002342150
7152461443
oct46721722
921165713
1010200018
115837474
1234ba956
13216191a
1414d72ca
15d67363
hex9ba3d2

10200018 has 16 divisors (see below), whose sum is σ = 20492640. Its totient is φ = 3384576.

The previous prime is 10200011. The next prime is 10200037. The reversal of 10200018 is 81000201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10199976 and 10200012.

It is not an unprimeable number, because it can be changed into a prime (10200011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2383 + ... + 5106.

It is an arithmetic number, because the mean of its divisors is an integer number (1280790).

Almost surely, 210200018 is an apocalyptic number.

10200018 is an abundant number, since it is smaller than the sum of its proper divisors (10292622).

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

10200018 is a wasteful number, since it uses less digits than its factorization.

10200018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7721.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 10200018 is about 3193.7467025423. The cubic root of 10200018 is about 216.8704160957.

Adding to 10200018 its reverse (81000201), we get a palindrome (91200219).

It can be divided in two parts, 10 and 200018, that added together give a triangular number (200028 = T632).

The spelling of 10200018 in words is "ten million, two hundred thousand, eighteen".

Divisors: 1 2 3 6 227 454 681 1362 7489 14978 22467 44934 1700003 3400006 5100009 10200018