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1010300221 = 7144328603
BaseRepresentation
bin111100001101111…
…111010100111101
32121102001120100201
4330031333110331
54032114101341
6244130123501
734015260460
oct7415772475
92542046321
101010300221
11479319567
12242420591
131314055a8
149826d2d7
155da68331
hex3c37f53d

1010300221 has 4 divisors (see below), whose sum is σ = 1154628832. Its totient is φ = 865971612.

The previous prime is 1010300209. The next prime is 1010300267. The reversal of 1010300221 is 1220030101.

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 a de Polignac number, because none of the positive numbers 2k-1010300221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1010300198 and 1010300207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010300201) 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, 72164295 + ... + 72164308.

It is an arithmetic number, because the mean of its divisors is an integer number (288657208).

Almost surely, 21010300221 is an apocalyptic number.

It is an amenable number.

1010300221 is a deficient number, since it is larger than the sum of its proper divisors (144328611).

1010300221 is an equidigital number, since it uses as much as digits as its factorization.

1010300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144328610.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1010300221 is about 31785.2201659828. The cubic root of 1010300221 is about 1003.4216857133.

Adding to 1010300221 its reverse (1220030101), we get a palindrome (2230330322).

The spelling of 1010300221 in words is "one billion, ten million, three hundred thousand, two hundred twenty-one".

Divisors: 1 7 144328603 1010300221