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1270047285 = 325132171021
BaseRepresentation
bin100101110110011…
…0110001000110101
310021111211002100100
41023230312020311
510100113003120
6330005304313
743321136523
oct11354661065
93244732310
101270047285
115a19aa361
122b5405099
1317317b690
14c0965313
1576775490
hex4bb36235

1270047285 has 24 divisors (see below), whose sum is σ = 2370756024. Its totient is φ = 625253760.

The previous prime is 1270047223. The next prime is 1270047293. The reversal of 1270047285 is 5827400721.

1270047285 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8803089 + 1261244196 = 2967^2 + 35514^2 .

It is not a de Polignac number, because 1270047285 - 212 = 1270043189 is a prime.

It is a super-2 number, since 2×12700472852 = 3226040212271742450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1084926 + ... + 1086095.

It is an arithmetic number, because the mean of its divisors is an integer number (98781501).

Almost surely, 21270047285 is an apocalyptic number.

1270047285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1270047285 is a deficient number, since it is larger than the sum of its proper divisors (1100708739).

1270047285 is a wasteful number, since it uses less digits than its factorization.

1270047285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171045 (or 2171042 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 1270047285 is about 35637.7227807838. The cubic root of 1270047285 is about 1082.9455726772.

The spelling of 1270047285 in words is "one billion, two hundred seventy million, forty-seven thousand, two hundred eighty-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 2171021 6513063 10855105 19539189 28223273 32565315 84669819 97695945 141116365 254009457 423349095 1270047285