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38870528 = 2931279
BaseRepresentation
bin1001010001000…
…1111000000000
32201010211100012
42110101320000
534422324103
63505044052
7651252104
oct224217000
981124305
1038870528
111aa3a004
1211026628
13808c718
14523b904
15362c2d8
hex2511e00

38870528 has 60 divisors (see below), whose sum is σ = 81267120. Its totient is φ = 18570240.

The previous prime is 38870473. The next prime is 38870537. The reversal of 38870528 is 82507883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 491993 + ... + 492071.

It is an arithmetic number, because the mean of its divisors is an integer number (1354452).

Almost surely, 238870528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38870528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40633560).

38870528 is an abundant number, since it is smaller than the sum of its proper divisors (42396592).

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

38870528 is an frugal number, since it uses more digits than its factorization.

38870528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 38870528 is about 6234.6233246284. The cubic root of 38870528 is about 338.7454573811.

The spelling of 38870528 in words is "thirty-eight million, eight hundred seventy thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 16 31 32 62 64 79 124 128 158 248 256 316 496 512 632 961 992 1264 1922 1984 2449 2528 3844 3968 4898 5056 7688 7936 9796 10112 15376 15872 19592 20224 30752 39184 40448 61504 75919 78368 123008 151838 156736 246016 303676 313472 492032 607352 626944 1214704 1253888 2429408 4858816 9717632 19435264 38870528