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38138036652 = 22333674492143
BaseRepresentation
bin100011100001001101…
…000100000110101100
310122102220102222222000
4203201031010012230
51111101314133102
625304222252300
72520044651142
oct434115040654
9118386388860
1038138036652
11151a0a22461
127484427090
13379a3a89c1
141bbb1a5592
15ed32de01c
hex8e13441ac

38138036652 has 96 divisors (see below), whose sum is σ = 99412992000. Its totient is φ = 12643900416.

The previous prime is 38138036647. The next prime is 38138036771. The reversal of 38138036652 is 25663083183.

It is a junction number, because it is equal to n+sod(n) for n = 38138036598 and 38138036607.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17795493 + ... + 17797635.

It is an arithmetic number, because the mean of its divisors is an integer number (1035552000).

Almost surely, 238138036652 is an apocalyptic number.

It is an amenable number.

38138036652 is an abundant number, since it is smaller than the sum of its proper divisors (61274955348).

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

38138036652 is a wasteful number, since it uses less digits than its factorization.

38138036652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2972 (or 2964 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 38138036652 in words is "thirty-eight billion, one hundred thirty-eight million, thirty-six thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 367 449 734 898 1101 1347 1468 1796 2143 2202 2694 3303 4041 4286 4404 5388 6429 6606 8082 8572 9909 12123 12858 13212 16164 19287 19818 24246 25716 38574 39636 48492 57861 77148 115722 164783 231444 329566 494349 659132 786481 962207 988698 1483047 1572962 1924414 1977396 2359443 2886621 2966094 3145924 3848828 4449141 4718886 5773242 5932188 7078329 8659863 8898282 9437772 11546484 14156658 17319726 17796564 21234987 25979589 28313316 34639452 42469974 51959178 84939948 103918356 353129969 706259938 1059389907 1412519876 2118779814 3178169721 4237559628 6356339442 9534509163 12712678884 19069018326 38138036652