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76499081 = 233326047
BaseRepresentation
bin1001000111101…
…00100010001001
312022221120000022
410203310202021
5124040432311
611331350225
71616142251
oct443644211
9168846008
1076499081
113a1aa98a
1221752375
1312b05a39
14a234961
156ab15db
hex48f4889

76499081 has 4 divisors (see below), whose sum is σ = 79825152. Its totient is φ = 73173012.

The previous prime is 76499069. The next prime is 76499083. The reversal of 76499081 is 18099467.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76499081 - 210 = 76498057 is a prime.

It is a super-2 number, since 2×764990812 = 11704218787689122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76499083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663001 + ... + 1663046.

It is an arithmetic number, because the mean of its divisors is an integer number (19956288).

Almost surely, 276499081 is an apocalyptic number.

It is an amenable number.

76499081 is a deficient number, since it is larger than the sum of its proper divisors (3326071).

76499081 is a wasteful number, since it uses less digits than its factorization.

76499081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326070.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 76499081 is about 8746.3753063769. The cubic root of 76499081 is about 424.5075375453.

The spelling of 76499081 in words is "seventy-six million, four hundred ninety-nine thousand, eighty-one".

Divisors: 1 23 3326047 76499081