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80032128 = 2731118947
BaseRepresentation
bin1001100010100…
…11000110000000
312120121001102220
410301103012000
5130442012003
611535211040
71661155551
oct461230600
9176531386
1080032128
11411a3360
1222976a80
1313771bb7
14a8b4328
15705d353
hex4c53180

80032128 has 64 divisors (see below), whose sum is σ = 231923520. Its totient is φ = 24250880.

The previous prime is 80032109. The next prime is 80032129. The reversal of 80032128 is 82123008.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 80032098 and 80032107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80032129) 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, 5250 + ... + 13697.

It is an arithmetic number, because the mean of its divisors is an integer number (3623805).

Almost surely, 280032128 is an apocalyptic number.

80032128 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

80032128 is an abundant number, since it is smaller than the sum of its proper divisors (151891392).

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

80032128 is a wasteful number, since it uses less digits than its factorization.

80032128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18975 (or 18963 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 80032128 is about 8946.0677395155. The cubic root of 80032128 is about 430.9446116846.

The spelling of 80032128 in words is "eighty million, thirty-two thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 128 132 176 192 264 352 384 528 704 1056 1408 2112 4224 18947 37894 56841 75788 113682 151576 208417 227364 303152 416834 454728 606304 625251 833668 909456 1212608 1250502 1667336 1818912 2425216 2501004 3334672 3637824 5002008 6669344 7275648 10004016 13338688 20008032 26677376 40016064 80032128