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38876161 = 172286833
BaseRepresentation
bin1001010001001…
…1010000000001
32201011010001211
42110103100001
534423014121
63505130121
7651304402
oct224232001
981133054
1038876161
111aa43265
1211029941
13809215c
14523d9a9
15362dce1
hex2513401

38876161 has 4 divisors (see below), whose sum is σ = 41163012. Its totient is φ = 36589312.

The previous prime is 38876143. The next prime is 38876207. The reversal of 38876161 is 16167883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16167883 = 64724989.

It can be written as a sum of positive squares in 2 ways, for example, as 35034561 + 3841600 = 5919^2 + 1960^2 .

It is a cyclic number.

It is not a de Polignac number, because 38876161 - 25 = 38876129 is a prime.

It is a super-2 number, since 2×388761612 = 3022711788195842, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38876111) 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, 1143400 + ... + 1143433.

It is an arithmetic number, because the mean of its divisors is an integer number (10290753).

Almost surely, 238876161 is an apocalyptic number.

It is an amenable number.

38876161 is a deficient number, since it is larger than the sum of its proper divisors (2286851).

38876161 is a wasteful number, since it uses less digits than its factorization.

38876161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286850.

The product of its digits is 48384, while the sum is 40.

The square root of 38876161 is about 6235.0750596925. The cubic root of 38876161 is about 338.7618199150.

The spelling of 38876161 in words is "thirty-eight million, eight hundred seventy-six thousand, one hundred sixty-one".

Divisors: 1 17 2286833 38876161