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2004215125 = 53114731013
BaseRepresentation
bin111011101110101…
…1110010101010101
312011200021200021211
41313131132111111
513101034341000
6530513141421
7100444355533
oct16735362525
95150250254
102004215125
11939366540
1247b25a871
1325c2c1b13
14150275153
15bae467ba
hex7775e555

2004215125 has 32 divisors (see below), whose sum is σ = 2786793984. Its totient is φ = 1426552000.

The previous prime is 2004215117. The next prime is 2004215137. The reversal of 2004215125 is 5215124002.

It is not a de Polignac number, because 2004215125 - 23 = 2004215117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2004215096 and 2004215105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49119 + ... + 80131.

It is an arithmetic number, because the mean of its divisors is an integer number (87087312).

Almost surely, 22004215125 is an apocalyptic number.

2004215125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2004215125 is a deficient number, since it is larger than the sum of its proper divisors (782578859).

2004215125 is a wasteful number, since it uses less digits than its factorization.

2004215125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31086 (or 31076 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2004215125 is about 44768.4612757687. The cubic root of 2004215125 is about 1260.8055495920.

Adding to 2004215125 its reverse (5215124002), we get a palindrome (7219339127).

The spelling of 2004215125 in words is "two billion, four million, two hundred fifteen thousand, one hundred twenty-five".

Divisors: 1 5 11 25 47 55 125 235 275 517 1175 1375 2585 5875 12925 31013 64625 155065 341143 775325 1457611 1705715 3876625 7288055 8528575 16033721 36440275 42642875 80168605 182201375 400843025 2004215125