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38943980 = 2253752627
BaseRepresentation
bin1001010010001…
…1110011101100
32201021120002122
42110203303230
534432201410
63510412112
7652006205
oct224436354
981246078
1038943980
111aa8a209
1211061038
1380b6c9a
14525a5ac
153643e55
hex2523cec

38943980 has 24 divisors (see below), whose sum is σ = 83994288. Its totient is φ = 15156288.

The previous prime is 38943979. The next prime is 38944001. The reversal of 38943980 is 8934983.

38943980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25574 + ... + 27053.

It is an arithmetic number, because the mean of its divisors is an integer number (3499762).

Almost surely, 238943980 is an apocalyptic number.

It is an amenable number.

38943980 is an abundant number, since it is smaller than the sum of its proper divisors (45050308).

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

38943980 is a wasteful number, since it uses less digits than its factorization.

38943980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52673 (or 52671 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 38943980 is about 6240.5111970094. The cubic root of 38943980 is about 338.9586941316.

The spelling of 38943980 in words is "thirty-eight million, nine hundred forty-three thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 52627 105254 210508 263135 526270 1052540 1947199 3894398 7788796 9735995 19471990 38943980