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76740045 = 359295507
BaseRepresentation
bin1001001001011…
…11010111001101
312100101210112220
410210233113031
5124121140140
611340445553
71621164624
oct444572715
9170353486
1076740045
113a354a28
12218498b9
1312b8b615
14a2986bb
156b0cbd0
hex492f5cd

76740045 has 16 divisors (see below), whose sum is σ = 122938560. Its totient is φ = 40876544.

The previous prime is 76740043. The next prime is 76740071. The reversal of 76740045 is 54004767.

It is a cyclic number.

It is not a de Polignac number, because 76740045 - 21 = 76740043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76739988 and 76740015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76740043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11182 + ... + 16688.

It is an arithmetic number, because the mean of its divisors is an integer number (7683660).

Almost surely, 276740045 is an apocalyptic number.

It is an amenable number.

76740045 is a deficient number, since it is larger than the sum of its proper divisors (46198515).

76740045 is a wasteful number, since it uses less digits than its factorization.

76740045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6444.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 76740045 is about 8760.1395536829. The cubic root of 76740045 is about 424.9527882966.

The spelling of 76740045 in words is "seventy-six million, seven hundred forty thousand, forty-five".

Divisors: 1 3 5 15 929 2787 4645 5507 13935 16521 27535 82605 5116003 15348009 25580015 76740045