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80090029 = 347230807
BaseRepresentation
bin1001100011000…
…01001110101101
312120200222212101
410301201032231
5131000340104
611540335101
71661516425
oct461411655
9176628771
1080090029
1141232908
12229a4491
1313792366
14a8cb485
1570705a4
hex4c613ad

80090029 has 4 divisors (see below), whose sum is σ = 80321184. Its totient is φ = 79858876.

The previous prime is 80089981. The next prime is 80090041. The reversal of 80090029 is 92009008.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80090029 - 29 = 80089517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80089979 and 80090006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80090069) 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 3 ways as a sum of consecutive naturals, for example, 115057 + ... + 115750.

It is an arithmetic number, because the mean of its divisors is an integer number (20080296).

Almost surely, 280090029 is an apocalyptic number.

It is an amenable number.

80090029 is a deficient number, since it is larger than the sum of its proper divisors (231155).

80090029 is a wasteful number, since it uses less digits than its factorization.

80090029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231154.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 80090029 is about 8949.3032689702. The cubic root of 80090029 is about 431.0485120790.

The spelling of 80090029 in words is "eighty million, ninety thousand, twenty-nine".

Divisors: 1 347 230807 80090029