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2001330132 = 223166777511
BaseRepresentation
bin111011101001001…
…1101111111010100
312011110212002211020
41313102131333110
513044320031012
6530331241140
7100411011504
oct16722357724
95143762736
102001330132
11937775a4a
1247a2a91b0
1325b821919
1414db23a04
15baa76a8c
hex7749dfd4

2001330132 has 12 divisors (see below), whose sum is σ = 4669770336. Its totient is φ = 667110040.

The previous prime is 2001330131. The next prime is 2001330161. The reversal of 2001330132 is 2310331002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20013301322 = 8010644594502274848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001330131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83388744 + ... + 83388767.

It is an arithmetic number, because the mean of its divisors is an integer number (389147528).

Almost surely, 22001330132 is an apocalyptic number.

It is an amenable number.

2001330132 is an abundant number, since it is smaller than the sum of its proper divisors (2668440204).

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

2001330132 is a wasteful number, since it uses less digits than its factorization.

2001330132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166777518 (or 166777516 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 2001330132 is about 44736.2284060693. The cubic root of 2001330132 is about 1260.2002982155.

Adding to 2001330132 its reverse (2310331002), we get a palindrome (4311661134).

The spelling of 2001330132 in words is "two billion, one million, three hundred thirty thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 166777511 333555022 500332533 667110044 1000665066 2001330132