Search a number
-
+
389741625 = 365371347
BaseRepresentation
bin10111001110101…
…111110000111001
31000011100221000000
4113032233300321
51244233213000
6102401303213
712441514650
oct2716576071
91004327000
10389741625
1118aaa9719
12aa634b09
136298c260
1439a94197
1524339000
hex173afc39

389741625 has 224 divisors, whose sum is σ = 916651008. Its totient is φ = 160963200.

The previous prime is 389741593. The next prime is 389741629. The reversal of 389741625 is 526147983.

It is not a de Polignac number, because 389741625 - 25 = 389741593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389741629) by changing a digit.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 8292352 + ... + 8292398.

It is an arithmetic number, because the mean of its divisors is an integer number (4092192).

Almost surely, 2389741625 is an apocalyptic number.

389741625 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

389741625 is an abundant number, since it is smaller than the sum of its proper divisors (526909383).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389741625 is an equidigital number, since it uses as much as digits as its factorization.

389741625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 75 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 389741625 is about 19741.8749109602. The cubic root of 389741625 is about 730.4529777591.

The spelling of 389741625 in words is "three hundred eighty-nine million, seven hundred forty-one thousand, six hundred twenty-five".