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76863423 = 3713281551
BaseRepresentation
bin1001001010011…
…01011110111111
312100122001210110
410211031132333
5124134112143
611343241103
71622220420
oct445153677
9170561713
1076863423
113a42969a
12218a9193
1312c02820
14a2cb647
156b34533
hex494d7bf

76863423 has 16 divisors (see below), whose sum is σ = 126135296. Its totient is φ = 40543200.

The previous prime is 76863419. The next prime is 76863431. The reversal of 76863423 is 32436867.

It is not a de Polignac number, because 76863423 - 22 = 76863419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76863463) 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 15 ways as a sum of consecutive naturals, for example, 140503 + ... + 141048.

It is an arithmetic number, because the mean of its divisors is an integer number (7883456).

Almost surely, 276863423 is an apocalyptic number.

76863423 is a deficient number, since it is larger than the sum of its proper divisors (49271873).

76863423 is a wasteful number, since it uses less digits than its factorization.

76863423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281574.

The product of its digits is 145152, while the sum is 39.

The square root of 76863423 is about 8767.1787366290. The cubic root of 76863423 is about 425.1804041493.

The spelling of 76863423 in words is "seventy-six million, eight hundred sixty-three thousand, four hundred twenty-three".

Divisors: 1 3 7 13 21 39 91 273 281551 844653 1970857 3660163 5912571 10980489 25621141 76863423