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389670372 = 2233713311279
BaseRepresentation
bin10111001110011…
…110010111100100
31000011020022021000
4113032132113210
51244223422442
6102355553300
712441100140
oct2716362744
91004208230
10389670372
1118aa60133
12aa5bb830
13629659b0
1439a76220
1524322d4c
hex1739e5e4

389670372 has 192 divisors, whose sum is σ = 1284505600. Its totient is φ = 99377280.

The previous prime is 389670371. The next prime is 389670377. The reversal of 389670372 is 273076983.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (389670371) 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 63 ways as a sum of consecutive naturals, for example, 304029 + ... + 305307.

Almost surely, 2389670372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389670372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (642252800).

389670372 is an abundant number, since it is smaller than the sum of its proper divisors (894835228).

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

389670372 is a wasteful number, since it uses less digits than its factorization.

389670372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343 (or 1335 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 389670372 is about 19740.0702126411. The cubic root of 389670372 is about 730.4084609692.

It can be divided in two parts, 389 and 670372, that added together give a square (670761 = 8192).

The spelling of 389670372 in words is "three hundred eighty-nine million, six hundred seventy thousand, three hundred seventy-two".