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100451030813 = 722050021037
BaseRepresentation
bin101110110001101011…
…0010001011100011101
3100121021121100002012122
41131203112101130131
53121210430441223
6114051354112325
710154161450100
oct1354326213435
9317247302178
10100451030813
1139667a96241
1217574a1b6a5
13961b0aa693
144c0cd0a737
15292db2d5c8
hex176359171d

100451030813 has 6 divisors (see below), whose sum is σ = 116851199166. Its totient is φ = 86100883512.

The previous prime is 100451030807. The next prime is 100451030861. The reversal of 100451030813 is 318030154001.

It can be written as a sum of positive squares in only one way, i.e., 57617761369 + 42833269444 = 240037^2 + 206962^2 .

It is not a de Polignac number, because 100451030813 - 224 = 100434253597 is a prime.

It is a super-3 number, since 3×1004510308133 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100451000813) 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, 1025010470 + ... + 1025010567.

It is an arithmetic number, because the mean of its divisors is an integer number (19475199861).

Almost surely, 2100451030813 is an apocalyptic number.

It is an amenable number.

100451030813 is a deficient number, since it is larger than the sum of its proper divisors (16400168353).

100451030813 is an equidigital number, since it uses as much as digits as its factorization.

100451030813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050021051 (or 2050021044 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 100451030813 its reverse (318030154001), we get a palindrome (418481184814).

The spelling of 100451030813 in words is "one hundred billion, four hundred fifty-one million, thirty thousand, eight hundred thirteen".

Divisors: 1 7 49 2050021037 14350147259 100451030813