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38884474820 = 2252384531467
BaseRepresentation
bin100100001101101100…
…011111111111000100
310201100220222222122002
4210031230133333010
51114113411143240
625510245124432
72544410403542
oct441554377704
9121326888562
1038884474820
11155442aa504
1276523b9718
133888c271a9
141c4c38ad92
151028ad5d15
hex90db1ffc4

38884474820 has 24 divisors (see below), whose sum is σ = 85207719744. Its totient is φ = 14877538016.

The previous prime is 38884474813. The next prime is 38884474823. The reversal of 38884474820 is 2847448883.

It is not an unprimeable number, because it can be changed into a prime (38884474823) 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, 42265274 + ... + 42266193.

It is an arithmetic number, because the mean of its divisors is an integer number (3550321656).

Almost surely, 238884474820 is an apocalyptic number.

It is an amenable number.

38884474820 is an abundant number, since it is smaller than the sum of its proper divisors (46323244924).

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

38884474820 is a wasteful number, since it uses less digits than its factorization.

38884474820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84531499 (or 84531497 counting only the distinct ones).

The product of its (nonzero) digits is 11010048, while the sum is 56.

The spelling of 38884474820 in words is "thirty-eight billion, eight hundred eighty-four million, four hundred seventy-four thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 84531467 169062934 338125868 422657335 845314670 1690629340 1944223741 3888447482 7776894964 9721118705 19442237410 38884474820