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1386932924 = 221389299683
BaseRepresentation
bin101001010101010…
…1110101010111100
310120122202111022002
41102222232222330
510320023323144
6345342441432
746240510136
oct12252565274
93518674262
101386932924
11651984263
12328593278
13191454b90
14d22b0056
1581b6314e
hex52aaeabc

1386932924 has 24 divisors (see below), whose sum is σ = 2643212880. Its totient is φ = 632928384.

The previous prime is 1386932903. The next prime is 1386932941. The reversal of 1386932924 is 4292396831.

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 7 ways as a sum of consecutive naturals, for example, 145214 + ... + 154469.

It is an arithmetic number, because the mean of its divisors is an integer number (110133870).

Almost surely, 21386932924 is an apocalyptic number.

It is an amenable number.

1386932924 is a deficient number, since it is larger than the sum of its proper divisors (1256279956).

1386932924 is a wasteful number, since it uses less digits than its factorization.

1386932924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299789 (or 299787 counting only the distinct ones).

The product of its digits is 559872, while the sum is 47.

The square root of 1386932924 is about 37241.5483566406. The cubic root of 1386932924 is about 1115.1975824723.

The spelling of 1386932924 in words is "one billion, three hundred eighty-six million, nine hundred thirty-two thousand, nine hundred twenty-four".

Divisors: 1 2 4 13 26 52 89 178 356 1157 2314 4628 299683 599366 1198732 3895879 7791758 15583516 26671787 53343574 106687148 346733231 693466462 1386932924