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100031453 = 839119227
BaseRepresentation
bin1011111011001…
…01101111011101
320222020010100122
411331211233131
5201102001303
613532004325
72323152614
oct575455735
9228203318
10100031453
1151513125
12296006a5
1317954c12
14d3dc87b
158bade38
hex5f65bdd

100031453 has 4 divisors (see below), whose sum is σ = 100151520. Its totient is φ = 99911388.

The previous prime is 100031443. The next prime is 100031467. The reversal of 100031453 is 354130001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354130001 = 419845179.

It is a cyclic number.

It is not a de Polignac number, because 100031453 - 212 = 100027357 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 (100031413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58775 + ... + 60452.

It is an arithmetic number, because the mean of its divisors is an integer number (25037880).

Almost surely, 2100031453 is an apocalyptic number.

It is an amenable number.

100031453 is a deficient number, since it is larger than the sum of its proper divisors (120067).

100031453 is an equidigital number, since it uses as much as digits as its factorization.

100031453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120066.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 100031453 is about 10001.5725263580. The cubic root of 100031453 is about 464.2075422246.

Adding to 100031453 its reverse (354130001), we get a palindrome (454161454).

The spelling of 100031453 in words is "one hundred million, thirty-one thousand, four hundred fifty-three".

Divisors: 1 839 119227 100031453