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1020332213 = 6720877297
BaseRepresentation
bin111100110100010…
…000100010110101
32122002221020122222
4330310100202311
54042201112323
6245125132125
734166452325
oct7464204265
92562836588
101020332213
11483a5076a
1224585a045
13133508894
1499721285
155e89a9c8
hex3cd108b5

1020332213 has 8 divisors (see below), whose sum is σ = 1036199232. Its totient is φ = 1004484096.

The previous prime is 1020332189. The next prime is 1020332227. The reversal of 1020332213 is 3122330201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1020332213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1020332191 and 1020332200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020332413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136181 + ... + 143477.

It is an arithmetic number, because the mean of its divisors is an integer number (129524904).

Almost surely, 21020332213 is an apocalyptic number.

It is an amenable number.

1020332213 is a deficient number, since it is larger than the sum of its proper divisors (15867019).

1020332213 is an equidigital number, since it uses as much as digits as its factorization.

1020332213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9451.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1020332213 is about 31942.6394181821. The cubic root of 1020332213 is about 1006.7319830408.

Adding to 1020332213 its reverse (3122330201), we get a palindrome (4142662414).

The spelling of 1020332213 in words is "one billion, twenty million, three hundred thirty-two thousand, two hundred thirteen".

Divisors: 1 67 2087 7297 139829 488899 15228839 1020332213