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38044837940 = 2258423225839
BaseRepresentation
bin100011011011101001…
…100010100000110100
310122012102002000100212
4203123221202200310
51110403434303230
625251052524552
72514533533604
oct433351424064
9118172060325
1038044837940
111515335692a
127459180758
133783ca6b35
141baca64c04
15eca02e895
hex8dba62834

38044837940 has 24 divisors (see below), whose sum is σ = 79903998720. Its totient is φ = 15216061088.

The previous prime is 38044837937. The next prime is 38044837949. The reversal of 38044837940 is 4973844083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38044837949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55541 + ... + 281379.

It is an arithmetic number, because the mean of its divisors is an integer number (3329333280).

Almost surely, 238044837940 is an apocalyptic number.

It is an amenable number.

38044837940 is an abundant number, since it is smaller than the sum of its proper divisors (41859160780).

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

38044837940 is a wasteful number, since it uses less digits than its factorization.

38044837940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234271 (or 234269 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 38044837940 in words is "thirty-eight billion, forty-four million, eight hundred thirty-seven thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 8423 16846 33692 42115 84230 168460 225839 451678 903356 1129195 2258390 4516780 1902241897 3804483794 7608967588 9511209485 19022418970 38044837940