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80240775 = 3521318167
BaseRepresentation
bin1001100100001…
…10000010000111
312120222122122120
410302012002013
5131020201100
611543501023
71663015056
oct462060207
9176878576
1080240775
114132609a
1222a57773
1313815b64
14a92a39d
1570a00a0
hex4c86087

80240775 has 24 divisors (see below), whose sum is σ = 133693824. Its totient is φ = 42463200.

The previous prime is 80240761. The next prime is 80240779. The reversal of 80240775 is 57704208.

It is not a de Polignac number, because 80240775 - 210 = 80239751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80240779) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5742 + ... + 13908.

It is an arithmetic number, because the mean of its divisors is an integer number (5570576).

Almost surely, 280240775 is an apocalyptic number.

80240775 is a deficient number, since it is larger than the sum of its proper divisors (53453049).

80240775 is a wasteful number, since it uses less digits than its factorization.

80240775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8311 (or 8306 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 80240775 is about 8957.7215294962. The cubic root of 80240775 is about 431.3187833996.

The spelling of 80240775 in words is "eighty million, two hundred forty thousand, seven hundred seventy-five".

Divisors: 1 3 5 15 25 75 131 393 655 1965 3275 8167 9825 24501 40835 122505 204175 612525 1069877 3209631 5349385 16048155 26746925 80240775