Search a number
-
+
385063143 = 3794393701
BaseRepresentation
bin10110111100111…
…001100011100111
3222211120020022220
4112330321203213
51242034010033
6102113123423
712353661033
oct2674714347
9884506286
10385063143
111883a3703
12a8b59573
1361a1191a
14391d71c3
1523c12bb3
hex16f398e7

385063143 has 16 divisors (see below), whose sum is σ = 521241600. Its totient is φ = 252813600.

The previous prime is 385063127. The next prime is 385063153. The reversal of 385063143 is 341360583.

It is not a de Polignac number, because 385063143 - 24 = 385063127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385063123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102193 + ... + 105893.

It is an arithmetic number, because the mean of its divisors is an integer number (32577600).

Almost surely, 2385063143 is an apocalyptic number.

385063143 is a deficient number, since it is larger than the sum of its proper divisors (136178457).

385063143 is a wasteful number, since it uses less digits than its factorization.

385063143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4222.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 385063143 is about 19623.0258370110. The cubic root of 385063143 is about 727.5184034267.

The spelling of 385063143 in words is "three hundred eighty-five million, sixty-three thousand, one hundred forty-three".

Divisors: 1 3 79 237 439 1317 3701 11103 34681 104043 292379 877137 1624739 4874217 128354381 385063143