Search a number
-
+
100224481 = 714317783
BaseRepresentation
bin1011111100101…
…00110111100001
320222120221010211
411332110313201
5201124140411
613540054121
72324615440
oct576246741
9228527124
10100224481
1151635155
1229694341
13179c1a36
14d44cd57
158beb221
hex5f94de1

100224481 has 4 divisors (see below), whose sum is σ = 114542272. Its totient is φ = 85906692.

The previous prime is 100224391. The next prime is 100224497. The reversal of 100224481 is 184422001.

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: 184422001 = 1710848353.

It is a cyclic number.

It is not a de Polignac number, because 100224481 - 27 = 100224353 is a prime.

It is a super-2 number, since 2×1002244812 = 20089893183438722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100254481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7158885 + ... + 7158898.

It is an arithmetic number, because the mean of its divisors is an integer number (28635568).

Almost surely, 2100224481 is an apocalyptic number.

It is an amenable number.

100224481 is a deficient number, since it is larger than the sum of its proper divisors (14317791).

100224481 is an equidigital number, since it uses as much as digits as its factorization.

100224481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14317790.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 100224481 is about 10011.2177580952. The cubic root of 100224481 is about 464.5059399663.

Adding to 100224481 its reverse (184422001), we get a palindrome (284646482).

The spelling of 100224481 in words is "one hundred million, two hundred twenty-four thousand, four hundred eighty-one".

Divisors: 1 7 14317783 100224481