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4257029 = 7608147
BaseRepresentation
bin10000001111010100000101
322000021112202
4100033110011
52042211104
6231124245
751120110
oct20172405
98007482
104257029
112448407
121513685
13b6086a
147cb577
1559151e
hex40f505

4257029 has 4 divisors (see below), whose sum is σ = 4865184. Its totient is φ = 3648876.

The previous prime is 4257023. The next prime is 4257037. The reversal of 4257029 is 9207524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4257029 - 212 = 4252933 is a prime.

It is a d-powerful number, because it can be written as 411 + 25 + 55 + 7 + 0 + 29 + 95 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4256992 and 4257010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4257023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304067 + ... + 304080.

It is an arithmetic number, because the mean of its divisors is an integer number (1216296).

Almost surely, 24257029 is an apocalyptic number.

It is an amenable number.

4257029 is a deficient number, since it is larger than the sum of its proper divisors (608155).

4257029 is an equidigital number, since it uses as much as digits as its factorization.

4257029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608154.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 4257029 is about 2063.2568914219. The cubic root of 4257029 is about 162.0698398255.

The spelling of 4257029 in words is "four million, two hundred fifty-seven thousand, twenty-nine".

Divisors: 1 7 608147 4257029