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2145015013 = 19322934963
BaseRepresentation
bin111111111011010…
…0101010011100101
312112111020001102111
41333312211103211
513343110440023
6552503041021
7104104220041
oct17766452345
95474201374
102145015013
11a00894589
124ba440171
1328251c26b
14164c47021
15c84aa00d
hex7fda54e5

2145015013 has 8 divisors (see below), whose sum is σ = 2258674400. Its totient is φ = 2031432048.

The previous prime is 2145015011. The next prime is 2145015043. The reversal of 2145015013 is 3105105412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2145015013 - 21 = 2145015011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145015011) 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, 43870 + ... + 78832.

It is an arithmetic number, because the mean of its divisors is an integer number (282334300).

Almost surely, 22145015013 is an apocalyptic number.

It is an amenable number.

2145015013 is a deficient number, since it is larger than the sum of its proper divisors (113659387).

2145015013 is a wasteful number, since it uses less digits than its factorization.

2145015013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38211.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2145015013 is about 46314.3067852688. The cubic root of 2145015013 is about 1289.6645990198.

It can be divided in two parts, 21450 and 15013, that added together give a palindrome (36463).

The spelling of 2145015013 in words is "two billion, one hundred forty-five million, fifteen thousand, thirteen".

Divisors: 1 19 3229 34963 61351 664297 112895527 2145015013