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80545375 = 53644363
BaseRepresentation
bin1001100110100…
…00011001011111
312121120010111001
410303100121133
5131104423000
611554211131
71665424111
oct463203137
9177503431
1080545375
1141513a29
1222b83aa7
13138c16b1
14a9a93b1
15711046a
hex4cd065f

80545375 has 8 divisors (see below), whose sum is σ = 100520784. Its totient is φ = 64436200.

The previous prime is 80545369. The next prime is 80545391. The reversal of 80545375 is 57354508.

It is not a de Polignac number, because 80545375 - 219 = 80021087 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 322057 + ... + 322306.

It is an arithmetic number, because the mean of its divisors is an integer number (12565098).

Almost surely, 280545375 is an apocalyptic number.

80545375 is a deficient number, since it is larger than the sum of its proper divisors (19975409).

80545375 is an equidigital number, since it uses as much as digits as its factorization.

80545375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644378 (or 644368 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 80545375 is about 8974.7075161255. The cubic root of 80545375 is about 431.8638670711.

The spelling of 80545375 in words is "eighty million, five hundred forty-five thousand, three hundred seventy-five".

Divisors: 1 5 25 125 644363 3221815 16109075 80545375