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80695147 = 1319326701
BaseRepresentation
bin1001100111101…
…00111101101011
312121211201221011
410303310331223
5131124221042
612001324351
71666616551
oct463647553
9177751834
1080695147
1141606505
12230366b7
1313944910
14aa07bd1
15713ea17
hex4cf4f6b

80695147 has 8 divisors (see below), whose sum is σ = 91476560. Its totient is φ = 70567200.

The previous prime is 80695129. The next prime is 80695151. The reversal of 80695147 is 74159608.

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 80695147 - 211 = 80693099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80695117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163104 + ... + 163597.

It is an arithmetic number, because the mean of its divisors is an integer number (11434570).

Almost surely, 280695147 is an apocalyptic number.

80695147 is a deficient number, since it is larger than the sum of its proper divisors (10781413).

80695147 is a wasteful number, since it uses less digits than its factorization.

80695147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326733.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 80695147 is about 8983.0477567471. The cubic root of 80695147 is about 432.1313811505.

The spelling of 80695147 in words is "eighty million, six hundred ninety-five thousand, one hundred forty-seven".

Divisors: 1 13 19 247 326701 4247113 6207319 80695147