Search a number
-
+
389341902 = 23109359369
BaseRepresentation
bin10111001101001…
…110001011001110
31000010121121200110
4113031032023032
51244132420102
6102344540450
712435231405
oct2715161316
91003547613
10389341902
1118a856374
12aa481726
136287c331
14399cc63c
15242aa86c
hex1734e2ce

389341902 has 16 divisors (see below), whose sum is σ = 779409360. Its totient is φ = 129659712.

The previous prime is 389341867. The next prime is 389341943. The reversal of 389341902 is 209143983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23127 + ... + 36242.

It is an arithmetic number, because the mean of its divisors is an integer number (48713085).

Almost surely, 2389341902 is an apocalyptic number.

389341902 is an abundant number, since it is smaller than the sum of its proper divisors (390067458).

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

389341902 is a wasteful number, since it uses less digits than its factorization.

389341902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60467.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 389341902 is about 19731.7485793834. The cubic root of 389341902 is about 730.2031723216.

The spelling of 389341902 in words is "three hundred eighty-nine million, three hundred forty-one thousand, nine hundred two".

Divisors: 1 2 3 6 1093 2186 3279 6558 59369 118738 178107 356214 64890317 129780634 194670951 389341902