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7428912285 = 352292399049
BaseRepresentation
bin1101110101100110…
…00011010010011101
3201011201210211211110
412322303003102131
5110203300143120
63225055212233
7352044466254
oct67263032235
921151724743
107428912285
113172477833
121533b17079
1391512b3b2
145068c979b
152d72de2e0
hex1bacc349d

7428912285 has 32 divisors (see below), whose sum is σ = 11989440000. Its totient is φ = 3927845376.

The previous prime is 7428912259. The next prime is 7428912289. The reversal of 7428912285 is 5822198247.

It is not a de Polignac number, because 7428912285 - 215 = 7428879517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7428912289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 816441 + ... + 825489.

It is an arithmetic number, because the mean of its divisors is an integer number (374670000).

Almost surely, 27428912285 is an apocalyptic number.

It is an amenable number.

7428912285 is a deficient number, since it is larger than the sum of its proper divisors (4560527715).

7428912285 is a wasteful number, since it uses less digits than its factorization.

7428912285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9525.

The product of its digits is 645120, while the sum is 48.

The square root of 7428912285 is about 86191.1380885529. The cubic root of 7428912285 is about 1951.2297555287.

The spelling of 7428912285 in words is "seven billion, four hundred twenty-eight million, nine hundred twelve thousand, two hundred eighty-five".

Divisors: 1 3 5 15 229 239 687 717 1145 1195 3435 3585 9049 27147 45245 54731 135735 164193 273655 820965 2072221 2162711 6216663 6488133 10361105 10813555 31083315 32440665 495260819 1485782457 2476304095 7428912285