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1285070 = 251071201
BaseRepresentation
bin100111001101111001110
32102021210012
410321233032
5312110240
643313222
713631363
oct4715716
92367705
101285070
117a8546
1251b812
1335cbc7
1425646a
151a5b65
hex139bce

1285070 has 16 divisors (see below), whose sum is σ = 2336688. Its totient is φ = 508800.

The previous prime is 1285069. The next prime is 1285099. The reversal of 1285070 is 705821.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470 + ... + 1670.

It is an arithmetic number, because the mean of its divisors is an integer number (146043).

21285070 is an apocalyptic number.

1285070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1285070 is a deficient number, since it is larger than the sum of its proper divisors (1051618).

1285070 is a wasteful number, since it uses less digits than its factorization.

1285070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1285070 is about 1133.6092801314. The cubic root of 1285070 is about 108.7198709859.

The spelling of 1285070 in words is "one million, two hundred eighty-five thousand, seventy".

Divisors: 1 2 5 10 107 214 535 1070 1201 2402 6005 12010 128507 257014 642535 1285070