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76864453 = 612774549
BaseRepresentation
bin1001001010011…
…01101111000101
312100122010012121
410211031233011
5124134130303
611343245541
71622223421
oct445155705
9170563177
1076864453
113a42a446
12218a98b1
1312c03133
14a2cbb81
156b349bd
hex494dbc5

76864453 has 8 divisors (see below), whose sum is σ = 78423800. Its totient is φ = 75314880.

The previous prime is 76864451. The next prime is 76864457. The reversal of 76864453 is 35446867.

It can be written as a sum of positive squares in 4 ways, for example, as 91809 + 76772644 = 303^2 + 8762^2 .

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 76864453 - 21 = 76864451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76864451) 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, 14623 + ... + 19171.

It is an arithmetic number, because the mean of its divisors is an integer number (9802975).

Almost surely, 276864453 is an apocalyptic number.

It is an amenable number.

76864453 is a deficient number, since it is larger than the sum of its proper divisors (1559347).

76864453 is a wasteful number, since it uses less digits than its factorization.

76864453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4887.

The product of its digits is 483840, while the sum is 43.

The square root of 76864453 is about 8767.2374782482. The cubic root of 76864453 is about 425.1823033355.

The spelling of 76864453 in words is "seventy-six million, eight hundred sixty-four thousand, four hundred fifty-three".

Divisors: 1 61 277 4549 16897 277489 1260073 76864453