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1021310412 = 223543115671
BaseRepresentation
bin111100110111111…
…111010111001100
32122011202221111120
4330313333113030
54042423413122
6245202120540
734210665243
oct7467772714
92564687446
101021310412
114845596a1
12246050150
1313378bbb5
14998d795a
155e9e075c
hex3cdff5cc

1021310412 has 24 divisors (see below), whose sum is σ = 2383648512. Its totient is φ = 340352400.

The previous prime is 1021310351. The next prime is 1021310441. The reversal of 1021310412 is 2140131201.

It is a junction number, because it is equal to n+sod(n) for n = 1021310391 and 1021310400.

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, 57337 + ... + 73007.

It is an arithmetic number, because the mean of its divisors is an integer number (99318688).

Almost surely, 21021310412 is an apocalyptic number.

1021310412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021310412 is an abundant number, since it is smaller than the sum of its proper divisors (1362338100).

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

1021310412 is a wasteful number, since it uses less digits than its factorization.

1021310412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21109 (or 21107 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1021310412 is about 31957.9475561244. The cubic root of 1021310412 is about 1007.0536004080.

Adding to 1021310412 its reverse (2140131201), we get a palindrome (3161441613).

The spelling of 1021310412 in words is "one billion, twenty-one million, three hundred ten thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 5431 10862 15671 16293 21724 31342 32586 47013 62684 65172 94026 188052 85109201 170218402 255327603 340436804 510655206 1021310412