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80807738 = 21131711587
BaseRepresentation
bin1001101000100…
…00011100111010
312122001110101012
410310100130322
5131141321423
612003553522
72000566034
oct464203472
9178043335
1080807738
1141683060
122308b8a2
1313983c3b
14aa36c54
157163078
hex4d1073a

80807738 has 16 divisors (see below), whose sum is σ = 132659424. Its totient is φ = 36611760.

The previous prime is 80807689. The next prime is 80807767. The reversal of 80807738 is 83770808.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80807695 and 80807704.

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, 1181 + ... + 12767.

It is an arithmetic number, because the mean of its divisors is an integer number (8291214).

Almost surely, 280807738 is an apocalyptic number.

80807738 is a deficient number, since it is larger than the sum of its proper divisors (51851686).

80807738 is a wasteful number, since it uses less digits than its factorization.

80807738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11917.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 80807738 is about 8989.3124319939. The cubic root of 80807738 is about 432.3322668098.

The spelling of 80807738 in words is "eighty million, eight hundred seven thousand, seven hundred thirty-eight".

Divisors: 1 2 11 22 317 634 3487 6974 11587 23174 127457 254914 3673079 7346158 40403869 80807738