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10128301989 = 3132314713711
BaseRepresentation
bin10010110111011000…
…11001111110100101
3222010212012001100220
421123230121332211
5131220321130424
64353004354553
7505663101141
oct113354317645
928125161326
1010128301989
114328187213
121b67b45a59
13c55460100
146c1200221
153e42a3579
hex25bb19fa5

10128301989 has 48 divisors (see below), whose sum is σ = 15417114624. Its totient is φ = 5902977600.

The previous prime is 10128301979. The next prime is 10128302003. The reversal of 10128301989 is 98910382101.

It is not a de Polignac number, because 10128301989 - 219 = 10127777701 is a prime.

It is a super-2 number, since 2×101283019892 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10128301989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10128301949) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 731844 + ... + 745554.

It is an arithmetic number, because the mean of its divisors is an integer number (321189888).

Almost surely, 210128301989 is an apocalyptic number.

It is an amenable number.

10128301989 is a deficient number, since it is larger than the sum of its proper divisors (5288812635).

10128301989 is a wasteful number, since it uses less digits than its factorization.

10128301989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13818 (or 13805 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 42.

The spelling of 10128301989 in words is "ten billion, one hundred twenty-eight million, three hundred one thousand, nine hundred eighty-nine".

Divisors: 1 3 13 31 39 47 93 141 169 403 507 611 1209 1457 1833 4371 5239 7943 13711 15717 18941 23829 41133 56823 178243 246233 425041 534729 644417 738699 1275123 1933251 2317159 5525533 6951477 8377421 16576599 19976927 25132263 59930781 71831929 108906473 215495787 259700051 326719419 779100153 3376100663 10128301989