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1020212210 = 25459722193
BaseRepresentation
bin111100110011110…
…011001111110010
32122002201011001102
4330303303033302
54042133242320
6245122404402
734165442423
oct7463631762
92562634042
101020212210
11483979596
12245800702
13133496084
14996cd64a
155e875175
hex3ccf33f2

1020212210 has 16 divisors (see below), whose sum is σ = 1836864216. Its totient is φ = 407977728.

The previous prime is 1020212203. The next prime is 1020212213. The reversal of 1020212210 is 122120201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 833534641 + 186677569 = 28871^2 + 13663^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1020212191 and 1020212200.

It is not an unprimeable number, because it can be changed into a prime (1020212213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34874 + ... + 57066.

Almost surely, 21020212210 is an apocalyptic number.

1020212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020212210 is a deficient number, since it is larger than the sum of its proper divisors (816652006).

1020212210 is a wasteful number, since it uses less digits than its factorization.

1020212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26797.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1020212210 is about 31940.7609489818. The cubic root of 1020212210 is about 1006.6925136754.

Adding to 1020212210 its reverse (122120201), we get a palindrome (1142332411).

The spelling of 1020212210 in words is "one billion, twenty million, two hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 4597 9194 22193 22985 44386 45970 110965 221930 102021221 204042442 510106105 1020212210