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83000019388 = 221113145104929
BaseRepresentation
bin100110101001100101…
…1111100100110111100
321221020102011211221011
41031103023330212330
52324441001110023
6102044002245004
75665550344546
oct1152313744674
9257212154834
1083000019388
1132222390050
1214104656764
137a99825110
144035388696
15225ba6850d
hex13532fc9bc

83000019388 has 24 divisors (see below), whose sum is σ = 170643397680. Its totient is φ = 34825182720.

The previous prime is 83000019371. The next prime is 83000019407. The reversal of 83000019388 is 88391000038.

It is a self number, because there is not a number n which added to its sum of digits gives 83000019388.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72551893 + ... + 72553036.

It is an arithmetic number, because the mean of its divisors is an integer number (7110141570).

Almost surely, 283000019388 is an apocalyptic number.

It is an amenable number.

83000019388 is an abundant number, since it is smaller than the sum of its proper divisors (87643378292).

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

83000019388 is a wasteful number, since it uses less digits than its factorization.

83000019388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145104957 (or 145104955 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 83000019388 in words is "eighty-three billion, nineteen thousand, three hundred eighty-eight".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 145104929 290209858 580419716 1596154219 1886364077 3192308438 3772728154 6384616876 7545456308 20750004847 41500009694 83000019388