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1387390114 = 211215137967
BaseRepresentation
bin101001010110001…
…1110010010100010
310120200121201110001
41102230132102202
510320132440424
6345400330214
746244423065
oct12254362242
93520551401
101387390114
11652166800
1232877396a
13191584cc6
14d238c8dc
1581c03844
hex52b1e4a2

1387390114 has 24 divisors (see below), whose sum is σ = 2302683264. Its totient is φ = 626439000.

The previous prime is 1387390099. The next prime is 1387390129. The reversal of 1387390114 is 4110937831.

It is an interprime number because it is at equal distance from previous prime (1387390099) and next prime (1387390129).

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, 17559 + ... + 55525.

It is an arithmetic number, because the mean of its divisors is an integer number (95945136).

Almost surely, 21387390114 is an apocalyptic number.

1387390114 is a deficient number, since it is larger than the sum of its proper divisors (915293150).

1387390114 is a wasteful number, since it uses less digits than its factorization.

1387390114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38142 (or 38131 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1387390114 is about 37247.6860220873. The cubic root of 1387390114 is about 1115.3201073041.

The spelling of 1387390114 in words is "one billion, three hundred eighty-seven million, three hundred ninety thousand, one hundred fourteen".

Divisors: 1 2 11 22 121 151 242 302 1661 3322 18271 36542 37967 75934 417637 835274 4594007 5733017 9188014 11466034 63063187 126126374 693695057 1387390114