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2100031301 = 17281439613
BaseRepresentation
bin111110100101011…
…1110111101000101
312102100120122101002
41331022332331011
513300102000201
6544214543045
7103016654144
oct17512767505
95370518332
102100031301
1198845a665
124a7367a85
132760cc194
1415cc9775b
15c457176b
hex7d2bef45

2100031301 has 8 divisors (see below), whose sum is σ = 2231480664. Its totient is φ = 1969461760.

The previous prime is 2100031277. The next prime is 2100031331. The reversal of 2100031301 is 1031300012.

It can be written as a sum of positive squares in 4 ways, for example, as 1423251076 + 676780225 = 37726^2 + 26015^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2100031301 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 (2100031331) 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, 215030 + ... + 224583.

It is an arithmetic number, because the mean of its divisors is an integer number (278935083).

Almost surely, 22100031301 is an apocalyptic number.

It is an amenable number.

2100031301 is a deficient number, since it is larger than the sum of its proper divisors (131449363).

2100031301 is a wasteful number, since it uses less digits than its factorization.

2100031301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439911.

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

The square root of 2100031301 is about 45826.0984701949. The cubic root of 2100031301 is about 1280.5855274017.

Adding to 2100031301 its reverse (1031300012), we get a palindrome (3131331313).

The spelling of 2100031301 in words is "two billion, one hundred million, thirty-one thousand, three hundred one".

Divisors: 1 17 281 4777 439613 7473421 123531253 2100031301