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4272879 = 3133312
BaseRepresentation
bin10000010011001011101111
322001002021210
4100103023233
52043213004
6231325503
751214242
oct20231357
98032253
104272879
112459306
121520893
13b67b40
147d3259
15596089
hex4132ef

4272879 has 12 divisors (see below), whose sum is σ = 6154008. Its totient is φ = 2621520.

The previous prime is 4272859. The next prime is 4272881. The reversal of 4272879 is 9782724.

It is not a de Polignac number, because 4272879 - 215 = 4240111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

4272879 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4272809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12744 + ... + 13074.

It is an arithmetic number, because the mean of its divisors is an integer number (512834).

Almost surely, 24272879 is an apocalyptic number.

4272879 is a deficient number, since it is larger than the sum of its proper divisors (1881129).

4272879 is an equidigital number, since it uses as much as digits as its factorization.

4272879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 347 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 4272879 is about 2067.0943374699. The cubic root of 4272879 is about 162.2707330958.

Multiplying 4272879 by its sum of digits (39), we get a square (166642281 = 129092).

4272879 divided by its sum of digits (39) gives a square (109561 = 3312).

It can be divided in two parts, 4272 and 879, that added together give a triangular number (5151 = T101).

The spelling of 4272879 in words is "four million, two hundred seventy-two thousand, eight hundred seventy-nine".

Divisors: 1 3 13 39 331 993 4303 12909 109561 328683 1424293 4272879