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101430223 = 157964237
BaseRepresentation
bin1100000101110…
…11001111001111
321001212012002221
412002323033033
5201431231343
614022000211
72341066636
oct602731717
9231765087
10101430223
1152289034
1229b76067
13180247ab
14d68451d
158d885ed
hex60bb3cf

101430223 has 4 divisors (see below), whose sum is σ = 101496040. Its totient is φ = 101364408.

The previous prime is 101430221. The next prime is 101430229. The reversal of 101430223 is 322034101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322034101 = 727442963.

It is a cyclic number.

It is not a de Polignac number, because 101430223 - 21 = 101430221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101430197 and 101430206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101430221) 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, 30540 + ... + 33697.

It is an arithmetic number, because the mean of its divisors is an integer number (25374010).

Almost surely, 2101430223 is an apocalyptic number.

101430223 is a deficient number, since it is larger than the sum of its proper divisors (65817).

101430223 is an equidigital number, since it uses as much as digits as its factorization.

101430223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65816.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 101430223 is about 10071.2572700731. The cubic root of 101430223 is about 466.3612526003.

Adding to 101430223 its reverse (322034101), we get a palindrome (423464324).

The spelling of 101430223 in words is "one hundred one million, four hundred thirty thousand, two hundred twenty-three".

Divisors: 1 1579 64237 101430223