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38428580 = 2259671987
BaseRepresentation
bin1001001010010…
…1111110100100
32200022101002202
42102211332210
534314203310
63451354032
7644431451
oct222457644
980271082
1038428580
111a767a63
1210a52918
137c66508
145164828
1535913a5
hex24a5fa4

38428580 has 24 divisors (see below), whose sum is σ = 80824128. Its totient is φ = 15347808.

The previous prime is 38428573. The next prime is 38428631. The reversal of 38428580 is 8582483.

38428580 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, 18347 + ... + 20333.

It is an arithmetic number, because the mean of its divisors is an integer number (3367672).

Almost surely, 238428580 is an apocalyptic number.

It is an amenable number.

38428580 is an abundant number, since it is smaller than the sum of its proper divisors (42395548).

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

38428580 is a wasteful number, since it uses less digits than its factorization.

38428580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2963 (or 2961 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 38428580 is about 6199.0789638462. The cubic root of 38428580 is about 337.4567443421.

The spelling of 38428580 in words is "thirty-eight million, four hundred twenty-eight thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 967 1934 1987 3868 3974 4835 7948 9670 9935 19340 19870 39740 1921429 3842858 7685716 9607145 19214290 38428580