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1387575070 = 25728336997
BaseRepresentation
bin101001010110100…
…1011011100011110
310120200222010011021
41102231023130132
510320204400240
6345404314354
746246123240
oct12255133436
93520863137
101387575070
11652282762
123288429ba
1319161b24b
14d23da090
1581c3d54a
hex52b4b71e

1387575070 has 32 divisors (see below), whose sum is σ = 2855855808. Its totient is φ = 475504128.

The previous prime is 1387575053. The next prime is 1387575083. The reversal of 1387575070 is 705757831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194812 + ... + 201808.

It is an arithmetic number, because the mean of its divisors is an integer number (89245494).

Almost surely, 21387575070 is an apocalyptic number.

1387575070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1387575070 is an abundant number, since it is smaller than the sum of its proper divisors (1468280738).

1387575070 is a wasteful number, since it uses less digits than its factorization.

1387575070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9844.

The product of its (nonzero) digits is 205800, while the sum is 43.

The square root of 1387575070 is about 37250.1687244501. The cubic root of 1387575070 is about 1115.3696670200.

The spelling of 1387575070 in words is "one billion, three hundred eighty-seven million, five hundred seventy-five thousand, seventy".

Divisors: 1 2 5 7 10 14 35 70 2833 5666 6997 13994 14165 19831 28330 34985 39662 48979 69970 97958 99155 198310 244895 489790 19822501 39645002 99112505 138757507 198225010 277515014 693787535 1387575070