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100320101 = 722047349
BaseRepresentation
bin1011111101011…
…00001101100101
320222202210022022
411332230031211
5201140220401
613542112525
72325464300
oct576541545
9228683268
10100320101
115169aa82
122971b745
1317a2640b
14d475b37
158c1971b
hex5fac365

100320101 has 6 divisors (see below), whose sum is σ = 116698950. Its totient is φ = 85988616.

The previous prime is 100320067. The next prime is 100320107. The reversal of 100320101 is 101023001.

It can be written as a sum of positive squares in only one way, i.e., 69739201 + 30580900 = 8351^2 + 5530^2 .

It is not a de Polignac number, because 100320101 - 222 = 96125797 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 (100320107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1023626 + ... + 1023723.

It is an arithmetic number, because the mean of its divisors is an integer number (19449825).

Almost surely, 2100320101 is an apocalyptic number.

It is an amenable number.

100320101 is a deficient number, since it is larger than the sum of its proper divisors (16378849).

100320101 is an equidigital number, since it uses as much as digits as its factorization.

100320101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047363 (or 2047356 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 100320101 is about 10015.9922623772. The cubic root of 100320101 is about 464.6536149317.

Adding to 100320101 its reverse (101023001), we get a palindrome (201343102).

The spelling of 100320101 in words is "one hundred million, three hundred twenty thousand, one hundred one".

Divisors: 1 7 49 2047349 14331443 100320101