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80349247 = 1110696833
BaseRepresentation
bin1001100101000…
…00100000111111
312121012011110001
410302200200333
5131032133442
611550055131
71663646236
oct462404077
9177164401
1080349247
114139a640
1222aaa4a7
1313853344
14a957b1d
1570c22b7
hex4ca083f

80349247 has 8 divisors (see below), whose sum is σ = 87748560. Its totient is φ = 72965760.

The previous prime is 80349239. The next prime is 80349263. The reversal of 80349247 is 74294308.

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 80349247 - 23 = 80349239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80349287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8343 + ... + 15175.

It is an arithmetic number, because the mean of its divisors is an integer number (10968570).

Almost surely, 280349247 is an apocalyptic number.

80349247 is a deficient number, since it is larger than the sum of its proper divisors (7399313).

80349247 is a wasteful number, since it uses less digits than its factorization.

80349247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7913.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 80349247 is about 8963.7741493190. The cubic root of 80349247 is about 431.5130526458.

The spelling of 80349247 in words is "eighty million, three hundred forty-nine thousand, two hundred forty-seven".

Divisors: 1 11 1069 6833 11759 75163 7304477 80349247