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38893312 = 281391093
BaseRepresentation
bin1001010001011…
…1011100000000
32201011222121001
42110113130000
534424041222
63505341344
7651405403
oct224273400
981158531
1038893312
111aa55137
1211037854
138099bc3
145245d3a
153633e27
hex2517700

38893312 has 36 divisors (see below), whose sum is σ = 78264760. Its totient is φ = 19289088.

The previous prime is 38893301. The next prime is 38893319. The reversal of 38893312 is 21339883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38893319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35038 + ... + 36130.

Almost surely, 238893312 is an apocalyptic number.

38893312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38893312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39132380).

38893312 is an abundant number, since it is smaller than the sum of its proper divisors (39371448).

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

38893312 is a wasteful number, since it uses less digits than its factorization.

38893312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248 (or 1234 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 38893312 is about 6236.4502723905. The cubic root of 38893312 is about 338.8116297866.

The spelling of 38893312 in words is "thirty-eight million, eight hundred ninety-three thousand, three hundred twelve".

Divisors: 1 2 4 8 16 32 64 128 139 256 278 556 1093 1112 2186 2224 4372 4448 8744 8896 17488 17792 34976 35584 69952 139904 151927 279808 303854 607708 1215416 2430832 4861664 9723328 19446656 38893312