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80673135 = 35371371061
BaseRepresentation
bin1001100111011…
…11100101101111
312121210121201220
410303233211233
5131123020020
612001034423
71666465434
oct463574557
9177717656
1080673135
11415a0a14
1223025a13
13139378aa
14a9ddb8b
157138240
hex4cef96f

80673135 has 32 divisors (see below), whose sum is σ = 133659072. Its totient is φ = 41518080.

The previous prime is 80673127. The next prime is 80673163. The reversal of 80673135 is 53137608.

It is a happy number.

It is not a de Polignac number, because 80673135 - 23 = 80673127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80673096 and 80673105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75505 + ... + 76565.

It is an arithmetic number, because the mean of its divisors is an integer number (4176846).

Almost surely, 280673135 is an apocalyptic number.

80673135 is a deficient number, since it is larger than the sum of its proper divisors (52985937).

80673135 is a wasteful number, since it uses less digits than its factorization.

80673135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 80673135 is about 8981.8224765356. The cubic root of 80673135 is about 432.0920853508.

It can be divided in two parts, 80673 and 135, that added together give a palindrome (80808).

The spelling of 80673135 in words is "eighty million, six hundred seventy-three thousand, one hundred thirty-five".

Divisors: 1 3 5 15 37 111 137 185 411 555 685 1061 2055 3183 5069 5305 15207 15915 25345 39257 76035 117771 145357 196285 436071 588855 726785 2180355 5378209 16134627 26891045 80673135