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5219381520 = 243257249141
BaseRepresentation
bin1001101110001100…
…10111000100010000
3111110202012001102200
410313012113010100
541142130202040
62221525243200
7243225003513
oct46706270420
914422161380
105219381520
112239228651
121017b63500
13652440942
1437728ad7a
1520833d630
hex137197110

5219381520 has 60 divisors (see below), whose sum is σ = 17528425356. Its totient is φ = 1391834880.

The previous prime is 5219381509. The next prime is 5219381543. The reversal of 5219381520 is 251839125.

5219381520 is a `hidden beast` number, since 52 + 1 + 9 + 3 + 81 + 520 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2466910224 + 2752471296 = 49668^2 + 52464^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3623851 + ... + 3625290.

Almost surely, 25219381520 is an apocalyptic number.

It is an amenable number.

5219381520 is an abundant number, since it is smaller than the sum of its proper divisors (12309043836).

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

5219381520 is a wasteful number, since it uses less digits than its factorization.

5219381520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7249160 (or 7249151 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 5219381520 is about 72245.2871819332. The cubic root of 5219381520 is about 1734.6279818167.

The spelling of 5219381520 in words is "five billion, two hundred nineteen million, three hundred eighty-one thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 7249141 14498282 21747423 28996564 36245705 43494846 57993128 65242269 72491410 86989692 108737115 115986256 130484538 144982820 173979384 217474230 260969076 289965640 326211345 347958768 434948460 521938152 579931280 652422690 869896920 1043876304 1304845380 1739793840 2609690760 5219381520