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2002131061 = 71915053617
BaseRepresentation
bin111011101010110…
…0001100001110101
312011112100210111021
41313111201201311
513100021143221
6530400341141
7100420555540
oct16725414165
95145323437
102002131061
11938172777
1247a6147b1
1325ba42348
1414dc91857
15bab84041
hex77561875

2002131061 has 8 divisors (see below), whose sum is σ = 2408578880. Its totient is φ = 1625790528.

The previous prime is 2002130993. The next prime is 2002131083. The reversal of 2002131061 is 1601312002.

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 2002131061 - 221 = 2000033909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002161061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7526676 + ... + 7526941.

It is an arithmetic number, because the mean of its divisors is an integer number (301072360).

Almost surely, 22002131061 is an apocalyptic number.

It is an amenable number.

2002131061 is a deficient number, since it is larger than the sum of its proper divisors (406447819).

2002131061 is a wasteful number, since it uses less digits than its factorization.

2002131061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15053643.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2002131061 is about 44745.1791928471. The cubic root of 2002131061 is about 1260.3683858179.

Adding to 2002131061 its reverse (1601312002), we get a palindrome (3603443063).

The spelling of 2002131061 in words is "two billion, two million, one hundred thirty-one thousand, sixty-one".

Divisors: 1 7 19 133 15053617 105375319 286018723 2002131061