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100230221 = 7131101431
BaseRepresentation
bin1011111100101…
…10010001001101
320222121020000102
411332112101031
5201124331341
613540140445
72324641250
oct576262115
9228536012
10100230221
11516394a3
1229697725
13179c4530
14d451097
158becc9b
hex5f9644d

100230221 has 8 divisors (see below), whose sum is σ = 123360384. Its totient is φ = 79302960.

The previous prime is 100230173. The next prime is 100230239. The reversal of 100230221 is 122032001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100230221 - 26 = 100230157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100230121) 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, 550625 + ... + 550806.

It is an arithmetic number, because the mean of its divisors is an integer number (15420048).

Almost surely, 2100230221 is an apocalyptic number.

It is an amenable number.

100230221 is a deficient number, since it is larger than the sum of its proper divisors (23130163).

100230221 is a wasteful number, since it uses less digits than its factorization.

100230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101451.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 100230221 is about 10011.5044324018. The cubic root of 100230221 is about 464.5148074378.

Adding to 100230221 its reverse (122032001), we get a palindrome (222262222).

The spelling of 100230221 in words is "one hundred million, two hundred thirty thousand, two hundred twenty-one".

Divisors: 1 7 13 91 1101431 7710017 14318603 100230221