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1386852488 = 23727614649
BaseRepresentation
bin101001010101001…
…1011000010001000
310120122121101221222
41102222123002020
510320013234423
6345341021212
746240023500
oct12252330210
93518541858
101386852488
1165192988a
12328554808
13191427398
14d228ca00
1581b493c8
hex52a9b088

1386852488 has 48 divisors (see below), whose sum is σ = 3029521500. Its totient is φ = 593456640.

The previous prime is 1386852473. The next prime is 1386852491. The reversal of 1386852488 is 8842586831.

It can be written as a sum of positive squares in 2 ways, for example, as 1383691204 + 3161284 = 37198^2 + 1778^2 .

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, 295988 + ... + 300636.

Almost surely, 21386852488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1386852488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1514760750).

1386852488 is an abundant number, since it is smaller than the sum of its proper divisors (1642669012).

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

1386852488 is a wasteful number, since it uses less digits than its factorization.

1386852488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5430 (or 5419 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 53.

The square root of 1386852488 is about 37240.4684181067. The cubic root of 1386852488 is about 1115.1760232064.

The spelling of 1386852488 in words is "one billion, three hundred eighty-six million, eight hundred fifty-two thousand, four hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 761 1522 3044 4649 5327 6088 9298 10654 18596 21308 32543 37192 37289 42616 65086 74578 130172 149156 227801 260344 298312 455602 911204 1822408 3537889 7075778 14151556 24765223 28303112 49530446 99060892 173356561 198121784 346713122 693426244 1386852488