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385399122 = 2364233187
BaseRepresentation
bin10110111110001…
…011100101010010
3222212012022012120
4112332023211102
51242130232442
6102124235110
712356560413
oct2676134522
9885168176
10385399122
11188603079
12a909ba96
1361acb824
143928380a
1523c7c4ec
hex16f8b952

385399122 has 8 divisors (see below), whose sum is σ = 770798256. Its totient is φ = 128466372.

The previous prime is 385399073. The next prime is 385399123. The reversal of 385399122 is 221993583.

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

385399122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (385399123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32116588 + ... + 32116599.

It is an arithmetic number, because the mean of its divisors is an integer number (96349782).

Almost surely, 2385399122 is an apocalyptic number.

385399122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

385399122 is a wasteful number, since it uses less digits than its factorization.

385399122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64233192.

The product of its digits is 116640, while the sum is 42.

The square root of 385399122 is about 19631.5848061230. The cubic root of 385399122 is about 727.7299357026.

The spelling of 385399122 in words is "three hundred eighty-five million, three hundred ninety-nine thousand, one hundred twenty-two".

Divisors: 1 2 3 6 64233187 128466374 192699561 385399122