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80790465 = 3572109919
BaseRepresentation
bin1001101000011…
…00001111000001
312122000120200110
410310030033001
5131140243330
612003341533
72000464500
oct464141701
9178016613
1080790465
1141671088
12230818a9
1313979112
14aa30837
15715cdb0
hex4d0c3c1

80790465 has 24 divisors (see below), whose sum is σ = 150370560. Its totient is φ = 36932448.

The previous prime is 80790431. The next prime is 80790469. The reversal of 80790465 is 56409708.

It is not a de Polignac number, because 80790465 - 26 = 80790401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80790469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54225 + ... + 55694.

It is an arithmetic number, because the mean of its divisors is an integer number (6265440).

Almost surely, 280790465 is an apocalyptic number.

It is an amenable number.

80790465 is a deficient number, since it is larger than the sum of its proper divisors (69580095).

80790465 is a wasteful number, since it uses less digits than its factorization.

80790465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109941 (or 109934 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 80790465 is about 8988.3516286358. The cubic root of 80790465 is about 432.3014603236.

The spelling of 80790465 in words is "eighty million, seven hundred ninety thousand, four hundred sixty-five".

Divisors: 1 3 5 7 15 21 35 49 105 147 245 735 109919 329757 549595 769433 1648785 2308299 3847165 5386031 11541495 16158093 26930155 80790465