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389296242 = 23221627569
BaseRepresentation
bin10111001101000…
…011000001110010
31000010112022001100
4113031003001302
51244124434432
6102343545230
712434651316
oct2715030162
91003468040
10389296242
1118a825035
12aa45b216
136286460a
14399b9b46
152429c07c
hex17343072

389296242 has 12 divisors (see below), whose sum is σ = 843475230. Its totient is φ = 129765408.

The previous prime is 389296207. The next prime is 389296249. The reversal of 389296242 is 242692983.

389296242 is a `hidden beast` number, since 389 + 29 + 6 + 242 = 666.

It can be written as a sum of positive squares in only one way, i.e., 220789881 + 168506361 = 14859^2 + 12981^2 .

It is not an unprimeable number, because it can be changed into a prime (389296249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10813767 + ... + 10813802.

Almost surely, 2389296242 is an apocalyptic number.

389296242 is an abundant number, since it is smaller than the sum of its proper divisors (454178988).

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

389296242 is a wasteful number, since it uses less digits than its factorization.

389296242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21627577 (or 21627574 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 389296242 is about 19730.5915268651. The cubic root of 389296242 is about 730.1746263914.

The spelling of 389296242 in words is "three hundred eighty-nine million, two hundred ninety-six thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 21627569 43255138 64882707 129765414 194648121 389296242