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80735028 = 223111932191
BaseRepresentation
bin1001100111111…
…10101100110100
312121220202122020
410303332230310
5131132010103
612002233140
72000144043
oct463765464
9177822566
1080735028
1141633470
12230557b0
1313959b0a
14aa1855a
15714b753
hex4cfeb34

80735028 has 48 divisors (see below), whose sum is σ = 216330240. Its totient is φ = 23176800.

The previous prime is 80734967. The next prime is 80735029. The reversal of 80735028 is 82053708.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 80735028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80735029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13588 + ... + 18603.

It is an arithmetic number, because the mean of its divisors is an integer number (4506880).

Almost surely, 280735028 is an apocalyptic number.

It is an amenable number.

80735028 is an abundant number, since it is smaller than the sum of its proper divisors (135595212).

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

80735028 is a wasteful number, since it uses less digits than its factorization.

80735028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32228 (or 32226 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 80735028 is about 8985.2672748227. The cubic root of 80735028 is about 432.2025584721.

The spelling of 80735028 in words is "eighty million, seven hundred thirty-five thousand, twenty-eight".

Divisors: 1 2 3 4 6 11 12 19 22 33 38 44 57 66 76 114 132 209 228 418 627 836 1254 2508 32191 64382 96573 128764 193146 354101 386292 611629 708202 1062303 1223258 1416404 1834887 2124606 2446516 3669774 4249212 6727919 7339548 13455838 20183757 26911676 40367514 80735028