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1385590082 = 2263212
BaseRepresentation
bin101001010010110…
…0110110101000010
310120120020021021012
41102211212311002
510314202340312
6345254000522
746223215142
oct12245466502
93516207235
101385590082
11651147378
12328046142
131910a48b6
14d2040922
158199a322
hex52966d42

1385590082 has 6 divisors (see below), whose sum is σ = 2078464089. Its totient is φ = 692768720.

The previous prime is 1385590069. The next prime is 1385590091. The reversal of 1385590082 is 2800955831.

It can be written as a sum of positive squares in 2 ways, for example, as 1021505521 + 364084561 = 31961^2 + 19081^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=26321.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 39482 + ... + 65802.

Almost surely, 21385590082 is an apocalyptic number.

1385590082 is a deficient number, since it is larger than the sum of its proper divisors (692874007).

1385590082 is an frugal number, since it uses more digits than its factorization.

1385590082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52644 (or 26323 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 1385590082 is about 37223.5151752222. The cubic root of 1385590082 is about 1114.8375511891.

The spelling of 1385590082 in words is "one billion, three hundred eighty-five million, five hundred ninety thousand, eighty-two".

Divisors: 1 2 26321 52642 692795041 1385590082