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38200061 = 54836967
BaseRepresentation
bin1001000110111…
…0001011111101
32122212202122002
42101232023331
534234400221
63442432045
7642460304
oct221561375
978782562
1038200061
111a6212a9
1210962625
137bb64b3
14510543b
15354880b
hex246e2fd

38200061 has 4 divisors (see below), whose sum is σ = 38212512. Its totient is φ = 38187612.

The previous prime is 38200009. The next prime is 38200067. The reversal of 38200061 is 16000283.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16000283 = 131230791.

It is a cyclic number.

It is not a de Polignac number, because 38200061 - 218 = 37937917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38200067) 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, 2000 + ... + 8966.

It is an arithmetic number, because the mean of its divisors is an integer number (9553128).

Almost surely, 238200061 is an apocalyptic number.

It is an amenable number.

38200061 is a deficient number, since it is larger than the sum of its proper divisors (12451).

38200061 is an equidigital number, since it uses as much as digits as its factorization.

38200061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12450.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 38200061 is about 6180.6197909271. The cubic root of 38200061 is about 336.7865084360.

The spelling of 38200061 in words is "thirty-eight million, two hundred thousand, sixty-one".

Divisors: 1 5483 6967 38200061