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76530331 = 131733797
BaseRepresentation
bin1001000111111…
…00001010011011
312100000010212201
410203330022123
5124042432311
611332151031
71616332333
oct443741233
9170003781
1076530331
113a221409
1221768477
1312b17027
14a2420c3
156aba9c1
hex48fc29b

76530331 has 8 divisors (see below), whose sum is σ = 77316624. Its totient is φ = 75747360.

The previous prime is 76530301. The next prime is 76530371. The reversal of 76530331 is 13303567.

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 76530331 - 219 = 76006043 is a prime.

It is a super-2 number, since 2×765303312 = 11713783125939122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76530331.

It is not an unprimeable number, because it can be changed into a prime (76530301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95625 + ... + 96421.

It is an arithmetic number, because the mean of its divisors is an integer number (9664578).

Almost surely, 276530331 is an apocalyptic number.

76530331 is a deficient number, since it is larger than the sum of its proper divisors (786293).

76530331 is a wasteful number, since it uses less digits than its factorization.

76530331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661.

The product of its (nonzero) digits is 5670, while the sum is 28.

The square root of 76530331 is about 8748.1615782975. The cubic root of 76530331 is about 424.5653336844.

Adding to 76530331 its reverse (13303567), we get a palindrome (89833898).

The spelling of 76530331 in words is "seventy-six million, five hundred thirty thousand, three hundred thirty-one".

Divisors: 1 131 733 797 96023 104407 584201 76530331