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1323142310 = 25731609743
BaseRepresentation
bin100111011011101…
…1000110010100110
310102012201121000202
41032313120302212
510202211023220
6335143310502
744534344520
oct11667306246
93365647022
101323142310
11619974446
1230b14b432
1318117b759
14c7a26a10
157b262275
hex4edd8ca6

1323142310 has 32 divisors (see below), whose sum is σ = 2809700352. Its totient is φ = 439014240.

The previous prime is 1323142291. The next prime is 1323142333. The reversal of 1323142310 is 132413231.

It is a super-2 number, since 2×13231423102 = 3501411145024272200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302702 + ... + 307041.

It is an arithmetic number, because the mean of its divisors is an integer number (87803136).

Almost surely, 21323142310 is an apocalyptic number.

1323142310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323142310 is an abundant number, since it is smaller than the sum of its proper divisors (1486558042).

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

1323142310 is a wasteful number, since it uses less digits than its factorization.

1323142310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609788.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1323142310 is about 36375.0231615047. The cubic root of 1323142310 is about 1097.8310733338.

Adding to 1323142310 its reverse (132413231), we get a palindrome (1455555541).

The spelling of 1323142310 in words is "one billion, three hundred twenty-three million, one hundred forty-two thousand, three hundred ten".

Divisors: 1 2 5 7 10 14 31 35 62 70 155 217 310 434 1085 2170 609743 1219486 3048715 4268201 6097430 8536402 18902033 21341005 37804066 42682010 94510165 132314231 189020330 264628462 661571155 1323142310