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5387240789 = 71745270931
BaseRepresentation
bin1010000010001101…
…01100010101010101
3111220110001012001122
411001012230111111
542013113201124
62250323133325
7250333535240
oct50106542525
914813035048
105387240789
112314a58817
121064214245
1367b153758
143916a4257
15217e4975e
hex1411ac555

5387240789 has 8 divisors (see below), whose sum is σ = 6519014208. Its totient is φ = 4346009280.

The previous prime is 5387240783. The next prime is 5387240819. The reversal of 5387240789 is 9870427835.

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 5387240789 - 232 = 1092273493 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5387240789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5387240783) 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, 22635347 + ... + 22635584.

It is an arithmetic number, because the mean of its divisors is an integer number (814876776).

Almost surely, 25387240789 is an apocalyptic number.

It is an amenable number.

5387240789 is a deficient number, since it is larger than the sum of its proper divisors (1131773419).

5387240789 is a wasteful number, since it uses less digits than its factorization.

5387240789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45270955.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The square root of 5387240789 is about 73397.8255059372. The cubic root of 5387240789 is about 1753.0277695189.

The spelling of 5387240789 in words is "five billion, three hundred eighty-seven million, two hundred forty thousand, seven hundred eighty-nine".

Divisors: 1 7 17 119 45270931 316896517 769605827 5387240789