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2015230014 = 232717940817
BaseRepresentation
bin111100000011101…
…1111100000111110
312012110000021212200
41320013133200332
513111344330024
6531545212330
7100640113110
oct17007374076
95173007780
102015230014
119445aa156
12482a910a6
1326167a5c5
141519013b0
15bbdc02c9
hex781df83e

2015230014 has 48 divisors (see below), whose sum is σ = 5283633888. Its totient is φ = 541910016.

The previous prime is 2015230013. The next prime is 2015230037. The reversal of 2015230014 is 4100325102.

It is a super-2 number, since 2×20152300142 = 8122304018652880392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015230013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 468267 + ... + 472550.

It is an arithmetic number, because the mean of its divisors is an integer number (110075706).

Almost surely, 22015230014 is an apocalyptic number.

2015230014 is an abundant number, since it is smaller than the sum of its proper divisors (3268403874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2015230014 is a wasteful number, since it uses less digits than its factorization.

2015230014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940849 (or 940846 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2015230014 is about 44891.3133467935. The cubic root of 2015230014 is about 1263.1110687450. Note that the first 3 decimals are identical.

Adding to 2015230014 its reverse (4100325102), we get a palindrome (6115555116).

The spelling of 2015230014 in words is "two billion, fifteen million, two hundred thirty thousand, fourteen".

Divisors: 1 2 3 6 7 9 14 17 18 21 34 42 51 63 102 119 126 153 238 306 357 714 1071 2142 940817 1881634 2822451 5644902 6585719 8467353 13171438 15993889 16934706 19757157 31987778 39514314 47981667 59271471 95963334 111957223 118542942 143945001 223914446 287890002 335871669 671743338 1007615007 2015230014