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80818316 = 2220204579
BaseRepresentation
bin1001101000100…
…11000010001100
312122001222212222
410310103002030
5131142141231
612004114512
72000641625
oct464230214
9178058788
1080818316
114168aaa7
1223095a38
13139889b7
14aa3aa4c
15716627b
hex4d1308c

80818316 has 6 divisors (see below), whose sum is σ = 141432060. Its totient is φ = 40409156.

The previous prime is 80818313. The next prime is 80818327. The reversal of 80818316 is 61381808.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80818313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10102286 + ... + 10102293.

It is an arithmetic number, because the mean of its divisors is an integer number (23572010).

Almost surely, 280818316 is an apocalyptic number.

It is an amenable number.

80818316 is a deficient number, since it is larger than the sum of its proper divisors (60613744).

80818316 is a wasteful number, since it uses less digits than its factorization.

80818316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20204583 (or 20204581 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 80818316 is about 8989.9007780954. The cubic root of 80818316 is about 432.3511305609.

The spelling of 80818316 in words is "eighty million, eight hundred eighteen thousand, three hundred sixteen".

Divisors: 1 2 4 20204579 40409158 80818316