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80215702318 = 2216011856759
BaseRepresentation
bin100101010110100111…
…0100111101100101110
321200001100222212221201
41022231032213230232
52303240204433233
6100503420520114
75536551135223
oct1125516475456
9250040885851
1080215702318
1131023744464
12136680b003a
137744a2931b
143c4d68794a
1521473ca77d
hex12ad3a7b2e

80215702318 has 8 divisors (see below), whose sum is σ = 120329188560. Its totient is φ = 40105972800.

The previous prime is 80215702279. The next prime is 80215702319. The reversal of 80215702318 is 81320751208.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80215702319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885178 + ... + 971581.

It is an arithmetic number, because the mean of its divisors is an integer number (15041148570).

Almost surely, 280215702318 is an apocalyptic number.

80215702318 is a deficient number, since it is larger than the sum of its proper divisors (40113486242).

80215702318 is a wasteful number, since it uses less digits than its factorization.

80215702318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878362.

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 80215702318 in words is "eighty billion, two hundred fifteen million, seven hundred two thousand, three hundred eighteen".

Divisors: 1 2 21601 43202 1856759 3713518 40107851159 80215702318