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1386425725 = 521923312527
BaseRepresentation
bin101001010100011…
…0010110101111101
310120121210201112221
41102220302311331
510314411110400
6345323525341
746233265336
oct12250626575
93517721487
101386425725
11651668193
12328389851
13191308069
14d21bb28d
1581ab2c1a
hex52a32d7d

1386425725 has 24 divisors (see below), whose sum is σ = 1817562240. Its totient is φ = 1046171520.

The previous prime is 1386425723. The next prime is 1386425759. The reversal of 1386425725 is 5275246831.

It is not a de Polignac number, because 1386425725 - 21 = 1386425723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386425723) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 104412 + ... + 116938.

It is an arithmetic number, because the mean of its divisors is an integer number (75731760).

Almost surely, 21386425725 is an apocalyptic number.

It is an amenable number.

1386425725 is a deficient number, since it is larger than the sum of its proper divisors (431136515).

1386425725 is a wasteful number, since it uses less digits than its factorization.

1386425725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12789 (or 12784 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 1386425725 is about 37234.7381486697. The cubic root of 1386425725 is about 1115.0616239477.

The spelling of 1386425725 in words is "one billion, three hundred eighty-six million, four hundred twenty-five thousand, seven hundred twenty-five".

Divisors: 1 5 19 25 95 233 475 1165 4427 5825 12527 22135 62635 110675 238013 313175 1190065 2918791 5950325 14593955 55457029 72969775 277285145 1386425725