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389377123 = 4131729959
BaseRepresentation
bin10111001101010…
…110110001100011
31000010200101222221
4113031112301203
51244140031443
6102345411511
712435436162
oct2715266143
91003611887
10389377123
1118a87a883
12aa499b97
1362892385
14399db3d9
15242b5eed
hex17356c63

389377123 has 8 divisors (see below), whose sum is σ = 400145760. Its totient is φ = 378669120.

The previous prime is 389377117. The next prime is 389377139. The reversal of 389377123 is 321773983.

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

It is a cyclic number.

It is not a de Polignac number, because 389377123 - 217 = 389246051 is a prime.

It is a super-2 number, since 2×3893771232 = 303229087831514258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389377123.

It is not an unprimeable number, because it can be changed into a prime (389327123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1983 + ... + 27976.

It is an arithmetic number, because the mean of its divisors is an integer number (50018220).

Almost surely, 2389377123 is an apocalyptic number.

389377123 is a deficient number, since it is larger than the sum of its proper divisors (10768637).

389377123 is a wasteful number, since it uses less digits than its factorization.

389377123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30317.

The product of its digits is 190512, while the sum is 43.

The square root of 389377123 is about 19732.6410548614. The cubic root of 389377123 is about 730.2251904248.

The spelling of 389377123 in words is "three hundred eighty-nine million, three hundred seventy-seven thousand, one hundred twenty-three".

Divisors: 1 41 317 12997 29959 1228319 9497003 389377123