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80619331 = 1350312329
BaseRepresentation
bin1001100111000…
…10011101000011
312121200212221011
410303202131003
5131114304311
611555541351
71666152532
oct463423503
9177625834
1080619331
1141564551
1222bba857
1313919260
14a9c8319
157127321
hex4ce2743

80619331 has 8 divisors (see below), whose sum is σ = 87000480. Its totient is φ = 74263872.

The previous prime is 80619323. The next prime is 80619397. The reversal of 80619331 is 13391608.

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 80619331 - 23 = 80619323 is a prime.

It is a super-2 number, since 2×806193312 = 12998953061775122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80619293 and 80619302.

It is not an unprimeable number, because it can be changed into a prime (80613331) 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, 375 + ... + 12703.

It is an arithmetic number, because the mean of its divisors is an integer number (10875060).

Almost surely, 280619331 is an apocalyptic number.

80619331 is a deficient number, since it is larger than the sum of its proper divisors (6381149).

80619331 is a wasteful number, since it uses less digits than its factorization.

80619331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12845.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 80619331 is about 8978.8268164610. The cubic root of 80619331 is about 431.9960044069.

The spelling of 80619331 in words is "eighty million, six hundred nineteen thousand, three hundred thirty-one".

Divisors: 1 13 503 6539 12329 160277 6201487 80619331