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38033081 = 167227743
BaseRepresentation
bin1001000100010…
…1011010111001
32122120021120122
42101011122321
534214024311
63435103025
7641163422
oct221053271
978507518
1038033081
111a5178a9
12108a1a75
137b584a8
1450a0649
1535140db
hex24456b9

38033081 has 4 divisors (see below), whose sum is σ = 38260992. Its totient is φ = 37805172.

The previous prime is 38033057. The next prime is 38033087. The reversal of 38033081 is 18033083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38033081 is a prime.

It is a super-2 number, since 2×380330812 = 2893030500705122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38033081.

It is not an unprimeable number, because it can be changed into a prime (38033087) 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, 113705 + ... + 114038.

It is an arithmetic number, because the mean of its divisors is an integer number (9565248).

Almost surely, 238033081 is an apocalyptic number.

It is an amenable number.

38033081 is a deficient number, since it is larger than the sum of its proper divisors (227911).

38033081 is a wasteful number, since it uses less digits than its factorization.

38033081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227910.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 38033081 is about 6167.0966426674. The cubic root of 38033081 is about 336.2950716014.

The spelling of 38033081 in words is "thirty-eight million, thirty-three thousand, eighty-one".

Divisors: 1 167 227743 38033081