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76044217 = 419719121
BaseRepresentation
bin1001000100001…
…01011110111001
312022002110001111
410202011132321
5123431403332
611313520321
71612236154
oct442053671
9168073044
1076044217
1139a1a167
12215730a1
13129a69a2
14a156c9b
156a21947
hex48857b9

76044217 has 8 divisors (see below), whose sum is σ = 78706152. Its totient is φ = 73420800.

The previous prime is 76044211. The next prime is 76044229. The reversal of 76044217 is 71244067.

It can be written as a sum of positive squares in 4 ways, for example, as 6471936 + 69572281 = 2544^2 + 8341^2 .

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 76044217 - 215 = 76011449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76044211) 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, 5584 + ... + 13537.

It is an arithmetic number, because the mean of its divisors is an integer number (9838269).

Almost surely, 276044217 is an apocalyptic number.

It is an amenable number.

76044217 is a deficient number, since it is larger than the sum of its proper divisors (2661935).

76044217 is a wasteful number, since it uses less digits than its factorization.

76044217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19259.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 76044217 is about 8720.3335371991. Note that the first 3 decimals coincide. The cubic root of 76044217 is about 423.6644896098.

The spelling of 76044217 in words is "seventy-six million, forty-four thousand, two hundred seventeen".

Divisors: 1 41 97 3977 19121 783961 1854737 76044217