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38374940 = 2251918747
BaseRepresentation
bin1001001001100…
…0111000011100
32200012122112002
42102120320130
534310444230
63450301432
7644116202
oct222307034
980178462
1038374940
111a73072a
1210a27878
137c47c86
14514d072
153580545
hex2498e1c

38374940 has 12 divisors (see below), whose sum is σ = 80587416. Its totient is φ = 15349968.

The previous prime is 38374939. The next prime is 38374943. The reversal of 38374940 is 4947383.

It is a junction number, because it is equal to n+sod(n) for n = 38374894 and 38374903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38374943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959354 + ... + 959393.

It is an arithmetic number, because the mean of its divisors is an integer number (6715618).

Almost surely, 238374940 is an apocalyptic number.

It is an amenable number.

38374940 is an abundant number, since it is smaller than the sum of its proper divisors (42212476).

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

38374940 is a wasteful number, since it uses less digits than its factorization.

38374940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918756 (or 1918754 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 38374940 is about 6194.7510038742. The cubic root of 38374940 is about 337.2996597937.

The spelling of 38374940 in words is "thirty-eight million, three hundred seventy-four thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 1918747 3837494 7674988 9593735 19187470 38374940