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38872113 = 3711316381
BaseRepresentation
bin1001010001001…
…0010000110001
32201010220111220
42110102100301
534422401423
63505055253
7651256530
oct224222061
981126456
1038872113
111aa40215
1211027529
138090367
14523c317
15362c9e3
hex2512431

38872113 has 16 divisors (see below), whose sum is σ = 59761536. Its totient is φ = 22014720.

The previous prime is 38872111. The next prime is 38872121. The reversal of 38872113 is 31127883.

It is not a de Polignac number, because 38872113 - 21 = 38872111 is a prime.

It is a super-2 number, since 2×388721132 = 3022082338169538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38872111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5818 + ... + 10563.

It is an arithmetic number, because the mean of its divisors is an integer number (3735096).

Almost surely, 238872113 is an apocalyptic number.

It is an amenable number.

38872113 is a deficient number, since it is larger than the sum of its proper divisors (20889423).

38872113 is a wasteful number, since it uses less digits than its factorization.

38872113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16504.

The product of its digits is 8064, while the sum is 33.

The square root of 38872113 is about 6234.7504360640. The cubic root of 38872113 is about 338.7500615914.

Adding to 38872113 its reverse (31127883), we get a palindrome (69999996).

The spelling of 38872113 in words is "thirty-eight million, eight hundred seventy-two thousand, one hundred thirteen".

Divisors: 1 3 7 21 113 339 791 2373 16381 49143 114667 344001 1851053 5553159 12957371 38872113