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2000013231 = 32347616717
BaseRepresentation
bin111011100110101…
…1100011110101111
312011101101012101010
41313031130132233
513044000410411
6530243120303
7100363555236
oct16715343657
95141335333
102000013231
11936a565a7
12479973093
1325b4803a8
1414d89db1d
15ba8b67a6
hex7735c7af

2000013231 has 16 divisors (see below), whose sum is σ = 2841836544. Its totient is φ = 1248233184.

The previous prime is 2000013227. The next prime is 2000013233. The reversal of 2000013231 is 1323100002.

It is a happy number.

It is not a de Polignac number, because 2000013231 - 22 = 2000013227 is a prime.

It is a super-2 number, since 2×20000132312 = 8000105848350118722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000013233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305116 + ... + 311601.

It is an arithmetic number, because the mean of its divisors is an integer number (177614784).

Almost surely, 22000013231 is an apocalyptic number.

2000013231 is a deficient number, since it is larger than the sum of its proper divisors (841823313).

2000013231 is a wasteful number, since it uses less digits than its factorization.

2000013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616790.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2000013231 is about 44721.5074768282. The cubic root of 2000013231 is about 1259.9238282246.

Adding to 2000013231 its reverse (1323100002), we get a palindrome (3323113233).

The spelling of 2000013231 in words is "two billion, thirteen thousand, two hundred thirty-one".

Divisors: 1 3 23 47 69 141 1081 3243 616717 1850151 14184491 28985699 42553473 86957097 666671077 2000013231