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76996019947 = 7112253144381
BaseRepresentation
bin100011110110101010…
…0100000011011101011
321100201222121002001111
41013231110200123223
52230141440114242
655212123531151
75364014241160
oct1075524403353
9240658532044
1076996019947
112a721278440
1212b09989ab7
137350988b22
143a25c18067
1520098e0817
hex11ed5206eb

76996019947 has 16 divisors (see below), whose sum is σ = 96001461504. Its totient is φ = 59992884000.

The previous prime is 76996019911. The next prime is 76996019951. The reversal of 76996019947 is 74991069967.

It is not a de Polignac number, because 76996019947 - 223 = 76987631339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76996019747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1712697 + ... + 1757077.

It is an arithmetic number, because the mean of its divisors is an integer number (6000091344).

Almost surely, 276996019947 is an apocalyptic number.

76996019947 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

76996019947 is a deficient number, since it is larger than the sum of its proper divisors (19005441557).

76996019947 is a wasteful number, since it uses less digits than its factorization.

76996019947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66930.

The product of its (nonzero) digits is 46294416, while the sum is 67.

The spelling of 76996019947 in words is "seventy-six billion, nine hundred ninety-six million, nineteen thousand, nine hundred forty-seven".

Divisors: 1 7 11 77 22531 44381 157717 247841 310667 488191 1734887 3417337 999948311 6999638177 10999431421 76996019947