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80601685 = 5711092083
BaseRepresentation
bin1001100110111…
…10001001010101
312121122222201121
410303132021111
5131113223220
611555323541
71666050223
oct463361125
9177588647
1080601685
114155226a
1222bb05b1
1313911208
14a9c1b13
157121eaa
hex4cde255

80601685 has 16 divisors (see below), whose sum is σ = 99031680. Its totient is φ = 62959680.

The previous prime is 80601673. The next prime is 80601721. The reversal of 80601685 is 58610608.

It is a happy number.

It is not a de Polignac number, because 80601685 - 213 = 80593493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80601685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37654 + ... + 39736.

It is an arithmetic number, because the mean of its divisors is an integer number (6189480).

Almost surely, 280601685 is an apocalyptic number.

It is an amenable number.

80601685 is a deficient number, since it is larger than the sum of its proper divisors (18429995).

80601685 is a wasteful number, since it uses less digits than its factorization.

80601685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 80601685 is about 8977.8441176042. The cubic root of 80601685 is about 431.9644836056.

The spelling of 80601685 in words is "eighty million, six hundred one thousand, six hundred eighty-five".

Divisors: 1 5 71 109 355 545 2083 7739 10415 38695 147893 227047 739465 1135235 16120337 80601685