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80276231 = 779714389
BaseRepresentation
bin1001100100011…
…10101100000111
312121001110021202
410302032230013
5131022314411
611544333115
71663223330
oct462165407
9177043252
1080276231
114134a7a2
1222a7419b
1313829039
14a939287
1570aa83b
hex4c8eb07

80276231 has 8 divisors (see below), whose sum is σ = 91865760. Its totient is φ = 68717088.

The previous prime is 80276219. The next prime is 80276239. The reversal of 80276231 is 13267208.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 80276231 - 214 = 80259847 is a prime.

It is a super-2 number, since 2×802762312 = 12888546527130722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80276194 and 80276203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80276239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1616 + ... + 12773.

It is an arithmetic number, because the mean of its divisors is an integer number (11483220).

Almost surely, 280276231 is an apocalyptic number.

80276231 is a deficient number, since it is larger than the sum of its proper divisors (11589529).

80276231 is a wasteful number, since it uses less digits than its factorization.

80276231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15193.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 80276231 is about 8959.7003856156. The cubic root of 80276231 is about 431.3823030040.

The spelling of 80276231 in words is "eighty million, two hundred seventy-six thousand, two hundred thirty-one".

Divisors: 1 7 797 5579 14389 100723 11468033 80276231