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2111425 = 5284457
BaseRepresentation
bin1000000011011111000001
310222021022221
420003133001
51020031200
6113131041
723642521
oct10033701
93867287
102111425
111212388
12859a81
1358c084
143cd681
152ba91a
hex2037c1

2111425 has 6 divisors (see below), whose sum is σ = 2618198. Its totient is φ = 1689120.

The previous prime is 2111419. The next prime is 2111443. The reversal of 2111425 is 5241112.

It can be written as a sum of positive squares in 3 ways, for example, as 215296 + 1896129 = 464^2 + 1377^2 .

It is not a de Polignac number, because 2111425 - 217 = 1980353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111399 and 2111408.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42204 + ... + 42253.

22111425 is an apocalyptic number.

2111425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2111425 is a deficient number, since it is larger than the sum of its proper divisors (506773).

2111425 is an equidigital number, since it uses as much as digits as its factorization.

2111425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84467 (or 84462 counting only the distinct ones).

The product of its digits is 80, while the sum is 16.

The square root of 2111425 is about 1453.0743270735. The cubic root of 2111425 is about 128.2897286314.

Adding to 2111425 its reverse (5241112), we get a palindrome (7352537).

The spelling of 2111425 in words is "two million, one hundred eleven thousand, four hundred twenty-five".

Divisors: 1 5 25 84457 422285 2111425