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11838384480 = 2535131897177
BaseRepresentation
bin10110000011001111…
…10110100101100000
31010120001000020112110
423001213312211200
5143221111300410
65234413355320
7566236415316
oct130147664540
933501006473
1011838384480
11502550652a
122364798b40
131168829940
1480438c0b6
15494499720
hex2c19f6960

11838384480 has 96 divisors (see below), whose sum is σ = 40159463904. Its totient is φ = 2914062336.

The previous prime is 11838384479. The next prime is 11838384499. The reversal of 11838384480 is 8448383811.

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 (48).

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, 942349 + ... + 954828.

It is an arithmetic number, because the mean of its divisors is an integer number (418327749).

Almost surely, 211838384480 is an apocalyptic number.

11838384480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11838384480 is an abundant number, since it is smaller than the sum of its proper divisors (28321079424).

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

11838384480 is a wasteful number, since it uses less digits than its factorization.

11838384480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897208 (or 1897200 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 48.

The spelling of 11838384480 in words is "eleven billion, eight hundred thirty-eight million, three hundred eighty-four thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 96 104 120 130 156 160 195 208 240 260 312 390 416 480 520 624 780 1040 1248 1560 2080 3120 6240 1897177 3794354 5691531 7588708 9485885 11383062 15177416 18971770 22766124 24663301 28457655 30354832 37943540 45532248 49326602 56915310 60709664 73989903 75887080 91064496 98653204 113830620 123316505 147979806 151774160 182128992 197306408 227661240 246633010 295959612 303548320 369949515 394612816 455322480 493266020 591919224 739899030 789225632 910644960 986532040 1183838448 1479798060 1973064080 2367676896 2959596120 3946128160 5919192240 11838384480