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1320211330 = 25177765949
BaseRepresentation
bin100111010110000…
…1101001110000010
310102000012200110221
41032230031032002
510200433230310
6335000413254
744500416424
oct11654151602
93360180427
101320211330
11618252349
1230a17722a
13180693649
14c74a2814
157ad83ada
hex4eb0d382

1320211330 has 16 divisors (see below), whose sum is σ = 2516167800. Its totient is φ = 497020672.

The previous prime is 1320211309. The next prime is 1320211337. The reversal of 1320211330 is 331120231.

It can be written as a sum of positive squares in 4 ways, for example, as 1224230121 + 95981209 = 34989^2 + 9797^2 .

It is not an unprimeable number, because it can be changed into a prime (1320211337) 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, 3882805 + ... + 3883144.

Almost surely, 21320211330 is an apocalyptic number.

1320211330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320211330 is a deficient number, since it is larger than the sum of its proper divisors (1195956470).

1320211330 is a wasteful number, since it uses less digits than its factorization.

1320211330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7765973.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1320211330 is about 36334.7124661803. The cubic root of 1320211330 is about 1097.0198479773.

Adding to 1320211330 its reverse (331120231), we get a palindrome (1651331561).

The spelling of 1320211330 in words is "one billion, three hundred twenty million, two hundred eleven thousand, three hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 7765949 15531898 38829745 77659490 132021133 264042266 660105665 1320211330