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2015413 = 2969497
BaseRepresentation
bin111101100000010110101
310210101121221
413230002311
51003443123
6111110341
723062561
oct7540265
93711557
102015413
111157234
128123b1
1355746a
143a66a1
1529c25d
hex1ec0b5

2015413 has 4 divisors (see below), whose sum is σ = 2084940. Its totient is φ = 1945888.

The previous prime is 2015411. The next prime is 2015417. The reversal of 2015413 is 3145102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 708964 + 1306449 = 842^2 + 1143^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015413 - 21 = 2015411 is a prime.

It is a Duffinian number.

2015413 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34720 + ... + 34777.

It is an arithmetic number, because the mean of its divisors is an integer number (521235).

22015413 is an apocalyptic number.

It is an amenable number.

2015413 is a deficient number, since it is larger than the sum of its proper divisors (69527).

2015413 is an equidigital number, since it uses as much as digits as its factorization.

2015413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69526.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2015413 is about 1419.6524222499. The cubic root of 2015413 is about 126.3149298400.

The spelling of 2015413 in words is "two million, fifteen thousand, four hundred thirteen".

Divisors: 1 29 69497 2015413