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38870 = 2513223
BaseRepresentation
bin1001011111010110
31222022122
421133112
52220440
6455542
7221216
oct113726
958278
1038870
1127227
121a5b2
1314900
1410246
15b7b5
hex97d6

38870 has 24 divisors (see below), whose sum is σ = 79056. Its totient is φ = 13728.

The previous prime is 38867. The next prime is 38873. The reversal of 38870 is 7883.

38870 is nontrivially palindromic in base 4.

It is an interprime number because it is at equal distance from previous prime (38867) and next prime (38873).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1679 + ... + 1701.

It is an arithmetic number, because the mean of its divisors is an integer number (3294).

238870 is an apocalyptic number.

38870 is an abundant number, since it is smaller than the sum of its proper divisors (40186).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39528).

38870 is a wasteful number, since it uses less digits than its factorization.

38870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 38870 is about 197.1547615453. The cubic root of 38870 is about 33.8743923585.

The spelling of 38870 in words is "thirty-eight thousand, eight hundred seventy".

Divisors: 1 2 5 10 13 23 26 46 65 115 130 169 230 299 338 598 845 1495 1690 2990 3887 7774 19435 38870