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80389128 = 2335363199
BaseRepresentation
bin1001100101010…
…10010000001000
312121021012011010
410302222100020
5131034423003
611551003520
71664203431
oct462522010
9177235133
1080389128
11414175a6
1222b095a0
1313868541
14a968488
1570ce003
hex4caa408

80389128 has 32 divisors (see below), whose sum is σ = 204768000. Its totient is φ = 26290368.

The previous prime is 80389109. The next prime is 80389139. The reversal of 80389128 is 82198308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30328 + ... + 32871.

It is an arithmetic number, because the mean of its divisors is an integer number (6399000).

Almost surely, 280389128 is an apocalyptic number.

It is an amenable number.

80389128 is an abundant number, since it is smaller than the sum of its proper divisors (124378872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80389128 is a wasteful number, since it uses less digits than its factorization.

80389128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63261 (or 63257 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 80389128 is about 8965.9984385455. The cubic root of 80389128 is about 431.5844340474.

The spelling of 80389128 in words is "eighty million, three hundred eighty-nine thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 53 106 159 212 318 424 636 1272 63199 126398 189597 252796 379194 505592 758388 1516776 3349547 6699094 10048641 13398188 20097282 26796376 40194564 80389128