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2038189920 = 253513326633
BaseRepresentation
bin111100101111100…
…0100111101100000
312021001012202221120
41321133010331200
513133234034140
6534125252240
7101336220444
oct17137047540
95231182846
102038189920
11956561288
1248a704080
13266359050
1415499a824
15bde081d0
hex797c4f60

2038189920 has 96 divisors (see below), whose sum is σ = 6914188512. Its totient is φ = 501706752.

The previous prime is 2038189913. The next prime is 2038189961. The reversal of 2038189920 is 299818302.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157077 + ... + 169556.

It is an arithmetic number, because the mean of its divisors is an integer number (72022797).

Almost surely, 22038189920 is an apocalyptic number.

2038189920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2038189920 is an abundant number, since it is smaller than the sum of its proper divisors (4875998592).

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

2038189920 is a wasteful number, since it uses less digits than its factorization.

2038189920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326664 (or 326656 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 2038189920 is about 45146.3167932889. The cubic root of 2038189920 is about 1267.8899220121.

The spelling of 2038189920 in words is "two billion, thirty-eight million, one hundred eighty-nine thousand, nine hundred twenty".

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 326633 653266 979899 1306532 1633165 1959798 2613064 3266330 3919596 4246229 4899495 5226128 6532660 7839192 8492458 9798990 10452256 12738687 13065320 15678384 16984916 19597980 21231145 25477374 26130640 31356768 33969832 39195960 42462290 50954748 52261280 63693435 67939664 78391920 84924580 101909496 127386870 135879328 156783840 169849160 203818992 254773740 339698320 407637984 509547480 679396640 1019094960 2038189920