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389041761 = 3157825991
BaseRepresentation
bin10111001100000…
…100111001100001
31000010001100222010
4113030010321201
51244043314021
6102334303133
712432541353
oct2714047141
91003040863
10389041761
1118a670919
12aa357aa9
13627a5834
14399510d3
152424b976
hex17304e61

389041761 has 8 divisors (see below), whose sum is σ = 522026944. Its totient is φ = 257708880.

The previous prime is 389041729. The next prime is 389041781. The reversal of 389041761 is 167140983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 389041761 - 25 = 389041729 is a prime.

It is a super-2 number, since 2×3890417612 = 302706983603962242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389041781) 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 7 ways as a sum of consecutive naturals, for example, 412525 + ... + 413466.

It is an arithmetic number, because the mean of its divisors is an integer number (65253368).

Almost surely, 2389041761 is an apocalyptic number.

It is an amenable number.

389041761 is a deficient number, since it is larger than the sum of its proper divisors (132985183).

389041761 is a wasteful number, since it uses less digits than its factorization.

389041761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826151.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 389041761 is about 19724.1415782791. The cubic root of 389041761 is about 730.0154878806.

The spelling of 389041761 in words is "three hundred eighty-nine million, forty-one thousand, seven hundred sixty-one".

Divisors: 1 3 157 471 825991 2477973 129680587 389041761