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30344590 = 2523131933
BaseRepresentation
bin111001111000…
…0010110001110
32010002122221201
41303300112032
530232011330
63002220114
7515632123
oct163602616
963078851
1030344590
1116146381
12a1b463a
136395aa3
14405c74a
1529e5eca
hex1cf058e

30344590 has 16 divisors (see below), whose sum is σ = 56995488. Its totient is φ = 11610016.

The previous prime is 30344579. The next prime is 30344591. The reversal of 30344590 is 9544303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30344591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65737 + ... + 66196.

It is an arithmetic number, because the mean of its divisors is an integer number (3562218).

Almost surely, 230344590 is an apocalyptic number.

30344590 is a deficient number, since it is larger than the sum of its proper divisors (26650898).

30344590 is a wasteful number, since it uses less digits than its factorization.

30344590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131963.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 30344590 is about 5508.5923791836. The cubic root of 30344590 is about 311.9084146591.

Adding to 30344590 its reverse (9544303), we get a palindrome (39888893).

The spelling of 30344590 in words is "thirty million, three hundred forty-four thousand, five hundred ninety".

Divisors: 1 2 5 10 23 46 115 230 131933 263866 659665 1319330 3034459 6068918 15172295 30344590