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80789080 = 23510319609
BaseRepresentation
bin1001101000010…
…11111001011000
312122000111210011
410310023321120
5131140222310
612003331304
72000460451
oct464137130
9178014704
1080789080
1141670039
1223080b34
13139785b8
14aa30128
15715c78a
hex4d0be58

80789080 has 32 divisors (see below), whose sum is σ = 183549600. Its totient is φ = 32000256.

The previous prime is 80789057. The next prime is 80789081. The reversal of 80789080 is 8098708.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80789081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5685 + ... + 13924.

It is an arithmetic number, because the mean of its divisors is an integer number (5735925).

Almost surely, 280789080 is an apocalyptic number.

It is an amenable number.

80789080 is an abundant number, since it is smaller than the sum of its proper divisors (102760520).

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

80789080 is a wasteful number, since it uses less digits than its factorization.

80789080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19723 (or 19719 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 80789080 is about 8988.2745841457. The cubic root of 80789080 is about 432.2989899787.

The spelling of 80789080 in words is "eighty million, seven hundred eighty-nine thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 103 206 412 515 824 1030 2060 4120 19609 39218 78436 98045 156872 196090 392180 784360 2019727 4039454 8078908 10098635 16157816 20197270 40394540 80789080