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80066465 = 561262513
BaseRepresentation
bin1001100010110…
…11011110100001
312120122210112122
410301123132201
5130444111330
611540034025
71661360633
oct461333641
9176583478
1080066465
1141217136
1222992915
131378470b
14a8c2a53
1570685e5
hex4c5b7a1

80066465 has 8 divisors (see below), whose sum is σ = 97655208. Its totient is φ = 63002880.

The previous prime is 80066461. The next prime is 80066471. The reversal of 80066465 is 56466008.

It can be written as a sum of positive squares in 4 ways, for example, as 1336336 + 78730129 = 1156^2 + 8873^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80066465 - 22 = 80066461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80066461) 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, 130952 + ... + 131561.

It is an arithmetic number, because the mean of its divisors is an integer number (12206901).

Almost surely, 280066465 is an apocalyptic number.

It is an amenable number.

80066465 is a deficient number, since it is larger than the sum of its proper divisors (17588743).

80066465 is a wasteful number, since it uses less digits than its factorization.

80066465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262579.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 80066465 is about 8947.9866450504. The cubic root of 80066465 is about 431.0062337264.

The spelling of 80066465 in words is "eighty million, sixty-six thousand, four hundred sixty-five".

Divisors: 1 5 61 305 262513 1312565 16013293 80066465