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80333121 = 31119314133
BaseRepresentation
bin1001100100111…
…00100101000001
312121011100022210
410302130211001
5131031124441
611545452333
71663551231
oct462344501
9177140283
1080333121
1141389510
1222aa10a9
1313848bbb
14a951cc1
1570bc616
hex4c9c941

80333121 has 32 divisors (see below), whose sum is σ = 126996480. Its totient is φ = 44625600.

The previous prime is 80333119. The next prime is 80333137. The reversal of 80333121 is 12133308.

It is a happy number.

It is not a de Polignac number, because 80333121 - 21 = 80333119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80333111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17371 + ... + 21503.

It is an arithmetic number, because the mean of its divisors is an integer number (3968640).

Almost surely, 280333121 is an apocalyptic number.

It is an amenable number.

80333121 is a deficient number, since it is larger than the sum of its proper divisors (46663359).

80333121 is a wasteful number, since it uses less digits than its factorization.

80333121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4197.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 80333121 is about 8962.8745946822. The cubic root of 80333121 is about 431.4841826591.

Adding to 80333121 its reverse (12133308), we get a palindrome (92466429).

The spelling of 80333121 in words is "eighty million, three hundred thirty-three thousand, one hundred twenty-one".

Divisors: 1 3 11 19 31 33 57 93 209 341 589 627 1023 1767 4133 6479 12399 19437 45463 78527 128123 136389 235581 384369 863797 1409353 2434337 2591391 4228059 7303011 26777707 80333121