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2005253015 = 5401050603
BaseRepresentation
bin111011110000101…
…1011101110010111
312011202020102000012
41313201123232113
513101321044030
6530551310435
7100456240463
oct16741335627
95152212005
102005253015
11939a052a7
1247b67b41b
1325c59635c
141504654a3
15bb09e095
hex7785bb97

2005253015 has 4 divisors (see below), whose sum is σ = 2406303624. Its totient is φ = 1604202408.

The previous prime is 2005252981. The next prime is 2005253021. The reversal of 2005253015 is 5103525002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2005253015 - 28 = 2005252759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200525297 + ... + 200525306.

It is an arithmetic number, because the mean of its divisors is an integer number (601575906).

Almost surely, 22005253015 is an apocalyptic number.

2005253015 is a deficient number, since it is larger than the sum of its proper divisors (401050609).

2005253015 is an equidigital number, since it uses as much as digits as its factorization.

2005253015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401050608.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 2005253015 is about 44780.0515296711. The cubic root of 2005253015 is about 1261.0231495953.

Adding to 2005253015 its reverse (5103525002), we get a palindrome (7108778017).

The spelling of 2005253015 in words is "two billion, five million, two hundred fifty-three thousand, fifteen".

Divisors: 1 5 401050603 2005253015