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2100213001 = 47129134613
BaseRepresentation
bin111110100101110…
…1011010100001001
312102100220212121201
41331023223110021
513300123304001
6544222504201
7103021341655
oct17513532411
95370825551
102100213001
11988574127
124a7435061
13276163ab3
1415cd03a65
15c45aa501
hex7d2eb509

2100213001 has 8 divisors (see below), whose sum is σ = 2146621824. Its totient is φ = 2053876080.

The previous prime is 2100212977. The next prime is 2100213041. The reversal of 2100213001 is 1003120012.

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 2100213001 - 25 = 2100212969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100213041) 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, 43371 + ... + 77983.

It is an arithmetic number, because the mean of its divisors is an integer number (268327728).

Almost surely, 22100213001 is an apocalyptic number.

It is an amenable number.

2100213001 is a deficient number, since it is larger than the sum of its proper divisors (46408823).

2100213001 is a wasteful number, since it uses less digits than its factorization.

2100213001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35951.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2100213001 is about 45828.0809220722. The cubic root of 2100213001 is about 1280.6224594988.

Adding to 2100213001 its reverse (1003120012), we get a palindrome (3103333013).

The spelling of 2100213001 in words is "two billion, one hundred million, two hundred thirteen thousand, one".

Divisors: 1 47 1291 34613 60677 1626811 44685383 2100213001