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2100013013 = 7607494237
BaseRepresentation
bin111110100101011…
…1010011111010101
312102100112201021202
41331022322133111
513300100404023
6544214322245
7103016546630
oct17512723725
95370481252
102100013013
1198844794a
124a7359385
132760c3a67
1415cc90c17
15c456b128
hex7d2ba7d5

2100013013 has 8 divisors (see below), whose sum is σ = 2403973632. Its totient is φ = 1797042096.

The previous prime is 2100012983. The next prime is 2100013037. The reversal of 2100013013 is 3103100012.

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 2100013013 - 26 = 2100012949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2100012985 and 2100013003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100013073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242870 + ... + 251367.

It is an arithmetic number, because the mean of its divisors is an integer number (300496704).

Almost surely, 22100013013 is an apocalyptic number.

It is an amenable number.

2100013013 is a deficient number, since it is larger than the sum of its proper divisors (303960619).

2100013013 is an equidigital number, since it uses as much as digits as its factorization.

2100013013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494851.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 2100013013 is about 45825.8989328087. The cubic root of 2100013013 is about 1280.5818100894.

Adding to 2100013013 its reverse (3103100012), we get a palindrome (5203113025).

The spelling of 2100013013 in words is "two billion, one hundred million, thirteen thousand, thirteen".

Divisors: 1 7 607 4249 494237 3459659 300001859 2100013013