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302020113221 = 1774167239539
BaseRepresentation
bin1000110010100011100…
…11010011001101000101
31001212120022010102010022
410121101303103031011
514422014122110341
6350425055104525
730551224414301
oct4312163231505
91055508112108
10302020113221
111070a4531262
124a649b12145
13226324c8a88
1410891554d01
157cc9be5e4b
hex4651cd3345

302020113221 has 8 divisors (see below), whose sum is σ = 319791648960. Its totient is φ = 284249204928.

The previous prime is 302020113179. The next prime is 302020113223. The reversal of 302020113221 is 122311020203.

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

It is a cyclic number.

It is not a de Polignac number, because 302020113221 - 214 = 302020096837 is a prime.

It is a super-2 number, since 2×3020201132212 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 302020113221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302020113223) 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, 1141070 + ... + 1380608.

It is an arithmetic number, because the mean of its divisors is an integer number (39973956120).

Almost surely, 2302020113221 is an apocalyptic number.

It is an amenable number.

302020113221 is a deficient number, since it is larger than the sum of its proper divisors (17771535739).

302020113221 is a wasteful number, since it uses less digits than its factorization.

302020113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313723.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 302020113221 its reverse (122311020203), we get a palindrome (424331133424).

The spelling of 302020113221 in words is "three hundred two billion, twenty million, one hundred thirteen thousand, two hundred twenty-one".

Divisors: 1 17 74167 239539 1260839 4072163 17765889013 302020113221