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1300222221 = 32914945083
BaseRepresentation
bin100110101111111…
…1101000100001101
310100121121010120120
41031133331010031
510130324102341
6333004135153
744135464224
oct11537750415
93317533516
101300222221
11607a3a221
123035374b9
131794b517c
14c497bcbb
1579236066
hex4d7fd10d

1300222221 has 8 divisors (see below), whose sum is σ = 1793410080. Its totient is φ = 836924592.

The previous prime is 1300222213. The next prime is 1300222229. The reversal of 1300222221 is 1222220031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1300222213) and next prime (1300222229).

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

It is not a de Polignac number, because 1300222221 - 23 = 1300222213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1300222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300222229) 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, 7472455 + ... + 7472628.

It is an arithmetic number, because the mean of its divisors is an integer number (224176260).

Almost surely, 21300222221 is an apocalyptic number.

It is an amenable number.

1300222221 is a deficient number, since it is larger than the sum of its proper divisors (493187859).

1300222221 is a wasteful number, since it uses less digits than its factorization.

1300222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14945115.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1300222221 is about 36058.5942737650. The cubic root of 1300222221 is about 1091.4550668047.

Adding to 1300222221 its reverse (1222220031), we get a palindrome (2522442252).

The spelling of 1300222221 in words is "one billion, three hundred million, two hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 3 29 87 14945083 44835249 433407407 1300222221