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38969456 = 2419128189
BaseRepresentation
bin1001010010101…
…0000001110000
32201022212001012
42110222001300
534434010311
63511130052
7652143401
oct224520160
981285035
1038969456
111aaa7369
1211073928
1380c5766
1452659a8
15364b78b
hex252a070

38969456 has 20 divisors (see below), whose sum is σ = 79477800. Its totient is φ = 18459072.

The previous prime is 38969443. The next prime is 38969467. The reversal of 38969456 is 65496983.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63791 + ... + 64398.

It is an arithmetic number, because the mean of its divisors is an integer number (3973890).

Almost surely, 238969456 is an apocalyptic number.

It is an amenable number.

38969456 is an abundant number, since it is smaller than the sum of its proper divisors (40508344).

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

38969456 is a wasteful number, since it uses less digits than its factorization.

38969456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128216 (or 128210 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 50.

The square root of 38969456 is about 6242.5520422340. The cubic root of 38969456 is about 339.0325902715.

The spelling of 38969456 in words is "thirty-eight million, nine hundred sixty-nine thousand, four hundred fifty-six".

Divisors: 1 2 4 8 16 19 38 76 152 304 128189 256378 512756 1025512 2051024 2435591 4871182 9742364 19484728 38969456