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38071668 = 22319374513
BaseRepresentation
bin1001000100111…
…0110101110100
32122122020111210
42101032311310
534221243133
63440001420
7641414055
oct221166564
978566453
1038071668
111a543898
1210900270
137b6cc1b
1450b072c
153520763
hex244ed74

38071668 has 48 divisors (see below), whose sum is σ = 96057920. Its totient is φ = 11695104.

The previous prime is 38071667. The next prime is 38071681. The reversal of 38071668 is 86617083.

38071668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38071667) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6180 + ... + 10692.

Almost surely, 238071668 is an apocalyptic number.

38071668 is a gapful number since it is divisible by the number (38) 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 38071668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48028960).

38071668 is an abundant number, since it is smaller than the sum of its proper divisors (57986252).

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

38071668 is a wasteful number, since it uses less digits than its factorization.

38071668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576 (or 4574 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 38071668 is about 6170.2243071059. The cubic root of 38071668 is about 336.4087641336.

The spelling of 38071668 in words is "thirty-eight million, seventy-one thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 19 37 38 57 74 76 111 114 148 222 228 444 703 1406 2109 2812 4218 4513 8436 9026 13539 18052 27078 54156 85747 166981 171494 257241 333962 342988 500943 514482 667924 1001886 1028964 2003772 3172639 6345278 9517917 12690556 19035834 38071668