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332023221 = 32167220907
BaseRepresentation
bin10011110010100…
…100010110110101
3212010202112020100
4103302210112311
51134444220341
652540224313
711141102505
oct2362442665
9763675210
10332023221
11160466a62
129323b099
1353a3095a
143214ba05
151e2373b6
hex13ca45b5

332023221 has 12 divisors (see below), whose sum is σ = 482463072. Its totient is φ = 220022376.

The previous prime is 332023213. The next prime is 332023229. The reversal of 332023221 is 122320233.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (332023213) and next prime (332023229).

It is not a de Polignac number, because 332023221 - 23 = 332023213 is a prime.

It is a super-2 number, since 2×3320232212 = 220478838566429682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 332023194 and 332023203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332023229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108951 + ... + 111956.

It is an arithmetic number, because the mean of its divisors is an integer number (40205256).

Almost surely, 2332023221 is an apocalyptic number.

It is an amenable number.

332023221 is a deficient number, since it is larger than the sum of its proper divisors (150439851).

332023221 is a wasteful number, since it uses less digits than its factorization.

332023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221080 (or 221077 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 332023221 is about 18221.5043561173. The cubic root of 332023221 is about 692.4517005069.

Adding to 332023221 its reverse (122320233), we get a palindrome (454343454).

The spelling of 332023221 in words is "three hundred thirty-two million, twenty-three thousand, two hundred twenty-one".

Divisors: 1 3 9 167 501 1503 220907 662721 1988163 36891469 110674407 332023221