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1301313221 = 13148367499
BaseRepresentation
bin100110110010000…
…0111011011000101
310100200122120010222
41031210013123011
510131114010341
6333043354125
744150660045
oct11544073305
93320576128
101301313221
1160861497a
12303982945
131797a7930
14c4b83725
157939e44b
hex4d9076c5

1301313221 has 8 divisors (see below), whose sum is σ = 1402380000. Its totient is φ = 1200384432.

The previous prime is 1301313203. The next prime is 1301313239. The reversal of 1301313221 is 1223131031.

It is an interprime number because it is at equal distance from previous prime (1301313203) and next prime (1301313239).

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

It is not a de Polignac number, because 1301313221 - 214 = 1301296837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1301313221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301313121) 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, 14471 + ... + 53028.

It is an arithmetic number, because the mean of its divisors is an integer number (175297500).

Almost surely, 21301313221 is an apocalyptic number.

It is an amenable number.

1301313221 is a deficient number, since it is larger than the sum of its proper divisors (101066779).

1301313221 is a wasteful number, since it uses less digits than its factorization.

1301313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68995.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1301313221 is about 36073.7192565446. The cubic root of 1301313221 is about 1091.7602568351.

Adding to 1301313221 its reverse (1223131031), we get a palindrome (2524444252).

The spelling of 1301313221 in words is "one billion, three hundred one million, three hundred thirteen thousand, two hundred twenty-one".

Divisors: 1 13 1483 19279 67499 877487 100101017 1301313221