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4030061 = 7575723
BaseRepresentation
bin1111010111111001101101
321120202012112
433113321231
52012430221
6222213405
746153310
oct17277155
97522175
104030061
112302932
121424265
13ab1469
1476c977
1554915b
hex3d7e6d

4030061 has 4 divisors (see below), whose sum is σ = 4605792. Its totient is φ = 3454332.

The previous prime is 4030051. The next prime is 4030063. The reversal of 4030061 is 1600304.

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 a de Polignac number, because none of the positive numbers 2k-4030061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4030063) 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, 287855 + ... + 287868.

It is an arithmetic number, because the mean of its divisors is an integer number (1151448).

Almost surely, 24030061 is an apocalyptic number.

It is an amenable number.

4030061 is a deficient number, since it is larger than the sum of its proper divisors (575731).

4030061 is an equidigital number, since it uses as much as digits as its factorization.

4030061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575730.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 4030061 is about 2007.5011830632. The cubic root of 4030061 is about 159.1367703627.

Adding to 4030061 its reverse (1600304), we get a palindrome (5630365).

The spelling of 4030061 in words is "four million, thirty thousand, sixty-one".

Divisors: 1 7 575723 4030061