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332020221 = 3138513339
BaseRepresentation
bin10011110010100…
…011100111111101
3212010202101010020
4103302203213331
51134444121341
652540202353
711141060661
oct2362434775
9763671106
10332020221
11160464785
12932393b9
1353a2c490
143214a8a1
151e236566
hex13ca39fd

332020221 has 8 divisors (see below), whose sum is σ = 476747040. Its totient is φ = 204320112.

The previous prime is 332020219. The next prime is 332020237. The reversal of 332020221 is 122020233.

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

It is not a de Polignac number, because 332020221 - 21 = 332020219 is a prime.

It is a super-2 number, since 2×3320202212 = 220474854305777682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 332020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332020121) 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, 4256631 + ... + 4256708.

It is an arithmetic number, because the mean of its divisors is an integer number (59593380).

Almost surely, 2332020221 is an apocalyptic number.

It is an amenable number.

332020221 is a deficient number, since it is larger than the sum of its proper divisors (144726819).

332020221 is a wasteful number, since it uses less digits than its factorization.

332020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8513355.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 332020221 is about 18221.4220356151. The cubic root of 332020221 is about 692.4496149486.

Adding to 332020221 its reverse (122020233), we get a palindrome (454040454).

The spelling of 332020221 in words is "three hundred thirty-two million, twenty thousand, two hundred twenty-one".

Divisors: 1 3 13 39 8513339 25540017 110673407 332020221