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1020214442 = 213257152681
BaseRepresentation
bin111100110011110…
…011110010101010
32122002201021010002
4330303303302222
54042133330232
6245122423002
734165452062
oct7463636252
92562637102
101020214442
11483980235
12245801a62
131334970b0
14996d03a2
155e875b62
hex3ccf3caa

1020214442 has 16 divisors (see below), whose sum is σ = 1654462152. Its totient is φ = 469032960.

The previous prime is 1020214399. The next prime is 1020214471. The reversal of 1020214442 is 2444120201.

It can be written as a sum of positive squares in 4 ways, for example, as 1010031961 + 10182481 = 31781^2 + 3191^2 .

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, 69659 + ... + 83022.

Almost surely, 21020214442 is an apocalyptic number.

1020214442 is a deficient number, since it is larger than the sum of its proper divisors (634247710).

1020214442 is a wasteful number, since it uses less digits than its factorization.

1020214442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152953.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1020214442 is about 31940.7958886437. The cubic root of 1020214442 is about 1006.6932478155.

Adding to 1020214442 its reverse (2444120201), we get a palindrome (3464334643).

The spelling of 1020214442 in words is "one billion, twenty million, two hundred fourteen thousand, four hundred forty-two".

Divisors: 1 2 13 26 257 514 3341 6682 152681 305362 1984853 3969706 39239017 78478034 510107221 1020214442