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1225713 = 3478693
BaseRepresentation
bin100101011001111110001
32022021100210
410223033301
5303210323
642134333
713263336
oct4531761
92267323
101225713
11767995
124b13a9
1333bb98
1423c98d
15193293
hex12b3f1

1225713 has 8 divisors (see below), whose sum is σ = 1669248. Its totient is φ = 799664.

The previous prime is 1225703. The next prime is 1225723. The reversal of 1225713 is 3175221.

It is an interprime number because it is at equal distance from previous prime (1225703) and next prime (1225723).

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 1225713 - 213 = 1217521 is a prime.

1225713 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1225713.

It is not an unprimeable number, because it can be changed into a prime (1225703) 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, 4206 + ... + 4487.

It is an arithmetic number, because the mean of its divisors is an integer number (208656).

21225713 is an apocalyptic number.

It is an amenable number.

1225713 is a deficient number, since it is larger than the sum of its proper divisors (443535).

1225713 is an equidigital number, since it uses as much as digits as its factorization.

1225713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8743.

The product of its digits is 420, while the sum is 21.

The square root of 1225713 is about 1107.1192347710. The cubic root of 1225713 is about 107.0195032431.

The spelling of 1225713 in words is "one million, two hundred twenty-five thousand, seven hundred thirteen".

Divisors: 1 3 47 141 8693 26079 408571 1225713