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4272709 = 7718597
BaseRepresentation
bin10000010011001001000101
322001002001111
4100103021011
52043211314
6231325021
751213610
oct20231105
98032044
104272709
112459171
121520771
13b67a3c
147d3177
15595ec4
hex413245

4272709 has 8 divisors (see below), whose sum is σ = 4952448. Its totient is φ = 3610320.

The previous prime is 4272707. The next prime is 4272727. The reversal of 4272709 is 9072724.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4272709 - 21 = 4272707 is a prime.

It is a Duffinian number.

4272709 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4272703) 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, 3802 + ... + 4795.

It is an arithmetic number, because the mean of its divisors is an integer number (619056).

Almost surely, 24272709 is an apocalyptic number.

It is an amenable number.

4272709 is a deficient number, since it is larger than the sum of its proper divisors (679739).

4272709 is an equidigital number, since it uses as much as digits as its factorization.

4272709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8675.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 4272709 is about 2067.0532165380. The cubic root of 4272709 is about 162.2685810425.

It can be divided in two parts, 427 and 2709, that added together give a square (3136 = 562).

The spelling of 4272709 in words is "four million, two hundred seventy-two thousand, seven hundred nine".

Divisors: 1 7 71 497 8597 60179 610387 4272709