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38116320 = 2535117219
BaseRepresentation
bin1001000101100…
…1101111100000
32122201111202120
42101121233200
534224210240
63440544240
7641661204
oct221315740
978644676
1038116320
111a5743a0
1210922080
137b87348
1450c2b04
15352dad0
hex2459be0

38116320 has 96 divisors (see below), whose sum is σ = 130999680. Its totient is φ = 9239040.

The previous prime is 38116259. The next prime is 38116321. The reversal of 38116320 is 2361183.

Added to its reverse (2361183) it gives a triangular number (40477503 = T8997).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38116321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1671 + ... + 8889.

It is an arithmetic number, because the mean of its divisors is an integer number (1364580).

Almost surely, 238116320 is an apocalyptic number.

38116320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38116320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65499840).

38116320 is an abundant number, since it is smaller than the sum of its proper divisors (92883360).

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

38116320 is a wasteful number, since it uses less digits than its factorization.

38116320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7248 (or 7240 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 38116320 is about 6173.8415917482. The cubic root of 38116320 is about 336.5402307089.

Adding to 38116320 its reverse (2361183), we get a triangular number (40477503 = T8997).

It can be divided in two parts, 381163 and 20, that added together give a palindrome (381183).

The spelling of 38116320 in words is "thirty-eight million, one hundred sixteen thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 66 80 88 96 110 120 132 160 165 176 220 240 264 330 352 440 480 528 660 880 1056 1320 1760 2640 5280 7219 14438 21657 28876 36095 43314 57752 72190 79409 86628 108285 115504 144380 158818 173256 216570 231008 238227 288760 317636 346512 397045 433140 476454 577520 635272 693024 794090 866280 952908 1155040 1191135 1270544 1588180 1732560 1905816 2382270 2541088 3176360 3465120 3811632 4764540 6352720 7623264 9529080 12705440 19058160 38116320