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101324221 = 431235091
BaseRepresentation
bin1100000101000…
…01010110111101
321001122210200221
412002201112331
5201414333341
614015421341
72340145615
oct602412675
9231583627
10101324221
1152216429
1229b24851
1317cb847b
14d657a45
158d66ed1
hex60a15bd

101324221 has 4 divisors (see below), whose sum is σ = 101559744. Its totient is φ = 101088700.

The previous prime is 101324191. The next prime is 101324227. The reversal of 101324221 is 122423101.

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.

It is a cyclic number.

It is not a de Polignac number, because 101324221 - 221 = 99227069 is a prime.

It is a super-2 number, since 2×1013242212 = 20533195522513682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101324195 and 101324204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101324227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117115 + ... + 117976.

It is an arithmetic number, because the mean of its divisors is an integer number (25389936).

Almost surely, 2101324221 is an apocalyptic number.

It is an amenable number.

101324221 is a deficient number, since it is larger than the sum of its proper divisors (235523).

101324221 is an equidigital number, since it uses as much as digits as its factorization.

101324221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235522.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 101324221 is about 10065.9932942557. The cubic root of 101324221 is about 466.1987354361.

Adding to 101324221 its reverse (122423101), we get a palindrome (223747322).

It can be divided in two parts, 10 and 1324221, that added together give a palindrome (1324231).

The spelling of 101324221 in words is "one hundred one million, three hundred twenty-four thousand, two hundred twenty-one".

Divisors: 1 431 235091 101324221