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17989314 = 2371922543
BaseRepresentation
bin100010010011…
…1111011000010
31020211221200220
41010213323002
514101124224
61441323510
7305622660
oct104477302
936757626
1017989314
11a177702
126036596
13395b185
142563c30
1518a5279
hex1127ec2

17989314 has 32 divisors (see below), whose sum is σ = 43284480. Its totient is φ = 4869072.

The previous prime is 17989273. The next prime is 17989319. The reversal of 17989314 is 41398971.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (17989319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10474 + ... + 12069.

It is an arithmetic number, because the mean of its divisors is an integer number (1352640).

Almost surely, 217989314 is an apocalyptic number.

17989314 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

17989314 is an abundant number, since it is smaller than the sum of its proper divisors (25295166).

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

17989314 is a wasteful number, since it uses less digits than its factorization.

17989314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22574.

The product of its digits is 54432, while the sum is 42.

The square root of 17989314 is about 4241.3811429769. The cubic root of 17989314 is about 262.0222675944.

The spelling of 17989314 in words is "seventeen million, nine hundred eighty-nine thousand, three hundred fourteen".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 399 798 22543 45086 67629 135258 157801 315602 428317 473403 856634 946806 1284951 2569902 2998219 5996438 8994657 17989314