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1338230630 = 251131392443
BaseRepresentation
bin100111111000011…
…1100011101100110
310110021010011022102
41033300330131212
510220041340010
6340442532102
745106526012
oct11760743546
93407104272
101338230630
1162743a530
12314207032
13184332359
14c9a33542
157c742ba5
hex4fc3c766

1338230630 has 32 divisors (see below), whose sum is σ = 2712572928. Its totient is φ = 470930400.

The previous prime is 1338230617. The next prime is 1338230651. The reversal of 1338230630 is 360328331.

It is a super-2 number, since 2×13382306302 = 3581722438140393800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1338230593 and 1338230602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192812 + ... + 199631.

It is an arithmetic number, because the mean of its divisors is an integer number (84767904).

Almost surely, 21338230630 is an apocalyptic number.

1338230630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1338230630 is an abundant number, since it is smaller than the sum of its proper divisors (1374342298).

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

1338230630 is a wasteful number, since it uses less digits than its factorization.

1338230630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392492.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 1338230630 is about 36581.8346997523. The cubic root of 1338230630 is about 1101.9883129361.

Adding to 1338230630 its reverse (360328331), we get a palindrome (1698558961).

The spelling of 1338230630 in words is "one billion, three hundred thirty-eight million, two hundred thirty thousand, six hundred thirty".

Divisors: 1 2 5 10 11 22 31 55 62 110 155 310 341 682 1705 3410 392443 784886 1962215 3924430 4316873 8633746 12165733 21584365 24331466 43168730 60828665 121657330 133823063 267646126 669115315 1338230630