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1438701348 = 223726140111
BaseRepresentation
bin101010111000000…
…1101011100100100
310201021011121020010
41111300031130210
510421301420343
6354432210220
750436521400
oct12560153444
93637147203
101438701348
11679122687
12341999970
1319c0ac196
14d9108100
158648bd33
hex55c0d724

1438701348 has 72 divisors (see below), whose sum is σ = 3969162624. Its totient is φ = 404308800.

The previous prime is 1438701293. The next prime is 1438701373. The reversal of 1438701348 is 8431078341.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15813 + ... + 55923.

Almost surely, 21438701348 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1438701348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1984581312).

1438701348 is an abundant number, since it is smaller than the sum of its proper divisors (2530461276).

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

1438701348 is a wasteful number, since it uses less digits than its factorization.

1438701348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40193 (or 40184 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1438701348 is about 37930.2168198390. The cubic root of 1438701348 is about 1128.9036663575.

Adding to 1438701348 its reverse (8431078341), we get a palindrome (9869779689).

The spelling of 1438701348 in words is "one billion, four hundred thirty-eight million, seven hundred one thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 61 84 98 122 147 183 196 244 294 366 427 588 732 854 1281 1708 2562 2989 5124 5978 8967 11956 17934 35868 40111 80222 120333 160444 240666 280777 481332 561554 842331 1123108 1684662 1965439 2446771 3369324 3930878 4893542 5896317 7340313 7861756 9787084 11792634 14680626 17127397 23585268 29361252 34254794 51382191 68509588 102764382 119891779 205528764 239783558 359675337 479567116 719350674 1438701348