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1938807325 = 527132929387
BaseRepresentation
bin111001110001111…
…1101101000011101
312000010012121122201
41303203331220131
512432313313300
6520215211501
766021406330
oct16343755035
95003177581
101938807325
11905451704
12461376b91
1324b8a0590
141456ca617
15b532666a
hex738fda1d

1938807325 has 48 divisors (see below), whose sum is σ = 3061054080. Its totient is φ = 1184843520.

The previous prime is 1938807251. The next prime is 1938807359. The reversal of 1938807325 is 5237088391.

It is not a de Polignac number, because 1938807325 - 215 = 1938774557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51282 + ... + 80668.

It is an arithmetic number, because the mean of its divisors is an integer number (63771960).

Almost surely, 21938807325 is an apocalyptic number.

It is an amenable number.

1938807325 is a deficient number, since it is larger than the sum of its proper divisors (1122246755).

1938807325 is a wasteful number, since it uses less digits than its factorization.

1938807325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29446 (or 29441 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 1938807325 is about 44031.8898640519. The cubic root of 1938807325 is about 1246.9380684510.

The spelling of 1938807325 in words is "one billion, nine hundred thirty-eight million, eight hundred seven thousand, three hundred twenty-five".

Divisors: 1 5 7 13 25 29 35 65 91 145 175 203 325 377 455 725 1015 1885 2275 2639 5075 9425 13195 29387 65975 146935 205709 382031 734675 852223 1028545 1910155 2674217 4261115 5142725 5965561 9550775 11078899 13371085 21305575 29827805 55394495 66855425 77552293 149139025 276972475 387761465 1938807325