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1380553482 = 237113139547
BaseRepresentation
bin101001001001001…
…1001001100001010
310120012202101100110
41102102121030022
510311410202412
6344554015150
746132340160
oct12222311412
93505671313
101380553482
116493172a0
123264174b6
13190030269
14d14cd230
1581302d3c
hex5249930a

1380553482 has 64 divisors (see below), whose sum is σ = 3453778944. Its totient is φ = 357402240.

The previous prime is 1380553481. The next prime is 1380553543. The reversal of 1380553482 is 2843550831.

It is a self number, because there is not a number n which added to its sum of digits gives 1380553482.

It is not an unprimeable number, because it can be changed into a prime (1380553481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139833 + ... + 149379.

It is an arithmetic number, because the mean of its divisors is an integer number (53965296).

Almost surely, 21380553482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1380553482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1726889472).

1380553482 is an abundant number, since it is smaller than the sum of its proper divisors (2073225462).

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

1380553482 is a wasteful number, since it uses less digits than its factorization.

1380553482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9883.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 1380553482 is about 37155.8001124993. The cubic root of 1380553482 is about 1113.4851050060.

The spelling of 1380553482 in words is "one billion, three hundred eighty million, five hundred fifty-three thousand, four hundred eighty-two".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 231 313 462 626 939 1878 2191 3443 4382 6573 6886 9547 10329 13146 19094 20658 24101 28641 48202 57282 66829 72303 105017 133658 144606 200487 210034 315051 400974 630102 735119 1470238 2205357 2988211 4410714 5976422 8964633 17929266 20917477 32870321 41834954 62752431 65740642 98610963 125504862 197221926 230092247 460184494 690276741 1380553482