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38872 = 2343113
BaseRepresentation
bin1001011111011000
31222022201
421133120
52220442
6455544
7221221
oct113730
958281
1038872
1127229
121a5b4
1314902
1410248
15b7b7
hex97d8

38872 has 16 divisors (see below), whose sum is σ = 75240. Its totient is φ = 18816.

The previous prime is 38867. The next prime is 38873. The reversal of 38872 is 27883.

It is a happy number.

It is a super-2 number, since 2×388722 = 3022064768, which contains 22 as substring.

38872 is an undulating number in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 38872.

It is a congruent number.

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

38872 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288 + ... + 400.

238872 is an apocalyptic number.

It is an amenable number.

38872 is a deficient number, since it is larger than the sum of its proper divisors (36368).

38872 is a wasteful number, since it uses less digits than its factorization.

38872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 158 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 38872 is about 197.1598336376. The cubic root of 38872 is about 33.8749733346.

The spelling of 38872 in words is "thirty-eight thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 43 86 113 172 226 344 452 904 4859 9718 19436 38872