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385155383 = 17157144307
BaseRepresentation
bin10110111101010…
…000000100110111
3222211201220212012
4112331100010313
51242044433013
6102115114435
712354523664
oct2675200467
9884656765
10385155383
11188456a38
12a8ba2a1b
1361a448c2
143921ca6b
1523c301a8
hex16f50137

385155383 has 8 divisors (see below), whose sum is σ = 410411952. Its totient is φ = 360187776.

The previous prime is 385155371. The next prime is 385155389. The reversal of 385155383 is 383551583.

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 385155383 - 24 = 385155367 is a prime.

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 385155383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385155389) 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, 69485 + ... + 74822.

It is an arithmetic number, because the mean of its divisors is an integer number (51301494).

Almost surely, 2385155383 is an apocalyptic number.

385155383 is a deficient number, since it is larger than the sum of its proper divisors (25256569).

385155383 is a wasteful number, since it uses less digits than its factorization.

385155383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144481.

The product of its digits is 216000, while the sum is 41.

The square root of 385155383 is about 19625.3759963981. The cubic root of 385155383 is about 727.5764899519.

The spelling of 385155383 in words is "three hundred eighty-five million, one hundred fifty-five thousand, three hundred eighty-three".

Divisors: 1 17 157 2669 144307 2453219 22656199 385155383