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17214561444 = 2231434546787
BaseRepresentation
bin10000000010000100…
…010101110010100100
31122102201020022212210
4100002010111302210
5240223411431234
611524103443420
71146410233533
oct200204256244
948381208783
1017214561444
117334197893
123405156570
1318145a8542
14b943b231a
156ab45abe9
hex402115ca4

17214561444 has 12 divisors (see below), whose sum is σ = 40167310064. Its totient is φ = 5738187144.

The previous prime is 17214561433. The next prime is 17214561461. The reversal of 17214561444 is 44416541271.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×172145614442 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717273382 + ... + 717273405.

Almost surely, 217214561444 is an apocalyptic number.

It is an amenable number.

17214561444 is an abundant number, since it is smaller than the sum of its proper divisors (22952748620).

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

17214561444 is a wasteful number, since it uses less digits than its factorization.

17214561444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434546794 (or 1434546792 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The spelling of 17214561444 in words is "seventeen billion, two hundred fourteen million, five hundred sixty-one thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 1434546787 2869093574 4303640361 5738187148 8607280722 17214561444