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1387358914 = 2701989557
BaseRepresentation
bin101001010110001…
…0110101011000010
310120200120010122111
41102230112223002
510320130441124
6345355525534
746244233114
oct12254265302
93520503574
101387358914
11652145317
123287598aa
13191573a46
14d23813b4
1581be9494
hex52b16ac2

1387358914 has 8 divisors (see below), whose sum is σ = 2084009148. Its totient is φ = 692689200.

The previous prime is 1387358909. The next prime is 1387358939. The reversal of 1387358914 is 4198537831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1000646689 + 386712225 = 31633^2 + 19665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493377 + ... + 496180.

Almost surely, 21387358914 is an apocalyptic number.

1387358914 is a deficient number, since it is larger than the sum of its proper divisors (696650234).

1387358914 is an equidigital number, since it uses as much as digits as its factorization.

1387358914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990260.

The product of its digits is 725760, while the sum is 49.

The square root of 1387358914 is about 37247.2672017693. The cubic root of 1387358914 is about 1115.3117467025.

The spelling of 1387358914 in words is "one billion, three hundred eighty-seven million, three hundred fifty-eight thousand, nine hundred fourteen".

Divisors: 1 2 701 1402 989557 1979114 693679457 1387358914