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18960424 = 237338579
BaseRepresentation
bin100100001010…
…1000000101000
31022200021210221
41020111000220
514323213144
61514215424
7320106130
oct110250050
938607727
1018960424
11a78027a
126424574
133c0b1b2
142737ac0
1519e7d84
hex1215028

18960424 has 16 divisors (see below), whose sum is σ = 40629600. Its totient is φ = 8125872.

The previous prime is 18960421. The next prime is 18960433. The reversal of 18960424 is 42406981.

It is a self number, because there is not a number n which added to its sum of digits gives 18960424.

It is not an unprimeable number, because it can be changed into a prime (18960421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169234 + ... + 169345.

It is an arithmetic number, because the mean of its divisors is an integer number (2539350).

Almost surely, 218960424 is an apocalyptic number.

18960424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18960424 is an abundant number, since it is smaller than the sum of its proper divisors (21669176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18960424 is a wasteful number, since it uses less digits than its factorization.

18960424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338592 (or 338588 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 18960424 is about 4354.3568985557. The cubic root of 18960424 is about 266.6547647466.

The spelling of 18960424 in words is "eighteen million, nine hundred sixty thousand, four hundred twenty-four".

Divisors: 1 2 4 7 8 14 28 56 338579 677158 1354316 2370053 2708632 4740106 9480212 18960424