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1050385131 = 3338903153
BaseRepresentation
bin111110100110111…
…001101011101011
32201012111002112000
4332212321223223
54122344311011
6252121222043
735013061215
oct7646715353
92635432460
101050385131
11499a07994
12253931923
131397cb983
149d7055b5
1562335356
hex3e9b9aeb

1050385131 has 8 divisors (see below), whose sum is σ = 1556126160. Its totient is φ = 700256736.

The previous prime is 1050385097. The next prime is 1050385157. The reversal of 1050385131 is 1315830501.

It is not a de Polignac number, because 1050385131 - 214 = 1050368747 is a prime.

It is a super-2 number, since 2×10503851312 = 2206617846851774322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 38903153 = 1050385131 / (1 + 0 + 5 + 0 + 3 + 8 + 5 + 1 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 1050385095 and 1050385104.

It is not an unprimeable number, because it can be changed into a prime (1050380131) 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, 19451550 + ... + 19451603.

It is an arithmetic number, because the mean of its divisors is an integer number (194515770).

Almost surely, 21050385131 is an apocalyptic number.

1050385131 is a deficient number, since it is larger than the sum of its proper divisors (505741029).

1050385131 is an equidigital number, since it uses as much as digits as its factorization.

1050385131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38903162 (or 38903156 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1050385131 is about 32409.6456475538. The cubic root of 1050385131 is about 1016.5206101150.

The spelling of 1050385131 in words is "one billion, fifty million, three hundred eighty-five thousand, one hundred thirty-one".

Divisors: 1 3 9 27 38903153 116709459 350128377 1050385131