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76823830 = 257682383
BaseRepresentation
bin1001001010000…
…11110100010110
312100120001111001
410211003310112
5124131330310
611342333514
71621664116
oct445036426
9170501431
1076823830
113a401976
122188a29a
1312bba7b5
14a2bb046
156b2793a
hex4943d16

76823830 has 8 divisors (see below), whose sum is σ = 138282912. Its totient is φ = 30729528.

The previous prime is 76823819. The next prime is 76823839. The reversal of 76823830 is 3832867.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 76823830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76823839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3841182 + ... + 3841201.

It is an arithmetic number, because the mean of its divisors is an integer number (17285364).

Almost surely, 276823830 is an apocalyptic number.

76823830 is a deficient number, since it is larger than the sum of its proper divisors (61459082).

76823830 is a wasteful number, since it uses less digits than its factorization.

76823830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7682390.

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

The square root of 76823830 is about 8764.9204217722. The cubic root of 76823830 is about 425.1073869352.

The spelling of 76823830 in words is "seventy-six million, eight hundred twenty-three thousand, eight hundred thirty".

Divisors: 1 2 5 10 7682383 15364766 38411915 76823830