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981680086189 = 11146576088807
BaseRepresentation
bin11100100100100001011…
…00010101110010101101
310110211212222021101012201
432102100230111302231
5112040440100224224
62030551055101501
7130631643024415
oct16222054256255
93424788241181
10981680086189
113493678a8560
1213a30a811891
13717589b735a
1435729341645
151a808268a44
hexe490b15cad

981680086189 has 8 divisors (see below), whose sum is σ = 1070996971968. Its totient is φ = 892375407360.

The previous prime is 981680086159. The next prime is 981680086193.

981680086189 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 981680086189 - 223 = 981671697581 is a prime.

It is a super-3 number, since 3×9816800861893 (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 981680086189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981680086159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2883177 + ... + 3205630.

It is an arithmetic number, because the mean of its divisors is an integer number (133874621496).

Almost surely, 2981680086189 is an apocalyptic number.

It is an amenable number.

981680086189 is a deficient number, since it is larger than the sum of its proper divisors (89316885779).

981680086189 is a wasteful number, since it uses less digits than its factorization.

981680086189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6103475.

The product of its (nonzero) digits is 11943936, while the sum is 64.

The spelling of 981680086189 in words is "nine hundred eighty-one billion, six hundred eighty million, eighty-six thousand, one hundred eighty-nine".

Divisors: 1 11 14657 161227 6088807 66976877 89243644199 981680086189